diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/.npmignore b/packages/babel-plugin-transform-remove-unused-catch-binding/.npmignore
new file mode 100644
index 0000000000..f980694583
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/.npmignore
@@ -0,0 +1,3 @@
+src
+test
+*.log
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/README.md b/packages/babel-plugin-transform-remove-unused-catch-binding/README.md
new file mode 100644
index 0000000000..8443a20b45
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/README.md
@@ -0,0 +1,60 @@
+# babel-plugin-transform-remove-unused-catch-binding
+
+> If the argument bound to the catch block is not referenced in the catch block, that argument and the catch binding is removed.
+
+
+## Examples
+
+```js
+try {
+  throw 0;
+} catch (err) {
+  console.log("it failed, but this code executes");
+}
+```
+Is transformed to:
+
+```js
+try {
+  throw 0;
+} catch {
+  console.log("it failed, but this code executes");
+}
+```
+
+
+## Installation
+
+```sh
+npm install --save-dev babel-plugin-transform-remove-unused-catch-binding
+```
+
+## Usage
+
+### Via `.babelrc` (Recommended)
+
+**.babelrc**
+
+```json
+{
+  "plugins": ["transform-remove-unused-catch-binding"]
+}
+```
+
+### Via CLI
+
+```sh
+babel --plugins transform-remove-unused-catch-binding script.js
+```
+
+### Via Node API
+
+```javascript
+require("babel-core").transform("code", {
+  plugins: ["transform-remove-unused-catch-binding"]
+});
+```
+
+## References
+This codemod updates your source code in line with the following proposal:
+- [Proposal: Optional Catch Binding for ECMAScript](https://github.com/babel/proposals/issues/7)
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/package.json b/packages/babel-plugin-transform-remove-unused-catch-binding/package.json
new file mode 100644
index 0000000000..0ca650ca96
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/package.json
@@ -0,0 +1,17 @@
+{
+  "name": "babel-plugin-transform-remove-unused-catch-binding",
+  "version": "7.0.0-alpha.20",
+  "description": "Remove unused catch bindings",
+  "repository": "https://github.com/babel/babel/tree/master/packages/babel-plugin-transform-remove-unused-catch-binding",
+  "license": "MIT",
+  "main": "lib/index.js",
+  "keywords": [
+    "babel-plugin"
+  ],
+  "dependencies": {
+    "babel-plugin-syntax-optional-catch-binding": "7.0.0-alpha.20"
+  },
+  "devDependencies": {
+    "babel-helper-plugin-test-runner": "7.0.0-alpha.20"
+  }
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/src/index.js b/packages/babel-plugin-transform-remove-unused-catch-binding/src/index.js
new file mode 100644
index 0000000000..66d901533e
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/src/index.js
@@ -0,0 +1,24 @@
+import syntaxOptionalCatchBinding from "babel-plugin-syntax-optional-catch-binding";
+
+export default function(babel) {
+  const { types: t } = babel;
+  return {
+    inherits: syntaxOptionalCatchBinding,
+
+    visitor: {
+      CatchClause(path) {
+        if (path.node.param === null || !t.isIdentifier(path.node.param)) {
+          return;
+        }
+        const binding = path.scope.getOwnBinding(path.node.param.name);
+        if (binding.constantViolations.length > 0) {
+          return;
+        }
+        if (!binding.referenced) {
+          const paramPath = path.get("param");
+          paramPath.remove();
+        }
+      },
+    },
+  };
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/options.json b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/options.json
new file mode 100644
index 0000000000..bfd6f2e628
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/options.json
@@ -0,0 +1,3 @@
+{
+  "plugins": ["transform-remove-unused-catch-binding"]
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-duplicate-variable-declaration/actual.js b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-duplicate-variable-declaration/actual.js
new file mode 100644
index 0000000000..520eab559f
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-duplicate-variable-declaration/actual.js
@@ -0,0 +1,5 @@
+try {
+  throw 0;
+} catch (e) {
+  let e = new TypeError('Duplicate variable declaration; will throw an error.');
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-duplicate-variable-declaration/options.json b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-duplicate-variable-declaration/options.json
new file mode 100644
index 0000000000..f451b42655
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-duplicate-variable-declaration/options.json
@@ -0,0 +1,3 @@
+{
+  "throws": "Duplicate declaration \"e\""
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-null-binding/actual.js b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-null-binding/actual.js
new file mode 100644
index 0000000000..1bf3a12cd8
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-null-binding/actual.js
@@ -0,0 +1,5 @@
+try {
+  throw 0;
+} catch {
+  console.log("it failed, but this code executes");
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-null-binding/expected.js b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-null-binding/expected.js
new file mode 100644
index 0000000000..1bf3a12cd8
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-null-binding/expected.js
@@ -0,0 +1,5 @@
+try {
+  throw 0;
+} catch {
+  console.log("it failed, but this code executes");
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-unused-array-pattern-binding/actual.js b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-unused-array-pattern-binding/actual.js
new file mode 100644
index 0000000000..89bd8f7b85
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-unused-array-pattern-binding/actual.js
@@ -0,0 +1,5 @@
+try {
+  throw 0;
+} catch ([message]) {
+  console.log("it failed, but this code executes");
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-unused-array-pattern-binding/expected.js b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-unused-array-pattern-binding/expected.js
new file mode 100644
index 0000000000..89bd8f7b85
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-unused-array-pattern-binding/expected.js
@@ -0,0 +1,5 @@
+try {
+  throw 0;
+} catch ([message]) {
+  console.log("it failed, but this code executes");
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-unused-binding/actual.js b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-unused-binding/actual.js
new file mode 100644
index 0000000000..0f989f7bdc
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-unused-binding/actual.js
@@ -0,0 +1,5 @@
+try {
+  throw 0;
+} catch (err) {
+  console.log("it failed, but this code executes");
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-unused-binding/expected.js b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-unused-binding/expected.js
new file mode 100644
index 0000000000..1bf3a12cd8
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-unused-binding/expected.js
@@ -0,0 +1,5 @@
+try {
+  throw 0;
+} catch {
+  console.log("it failed, but this code executes");
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-unused-object-pattern-binding/actual.js b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-unused-object-pattern-binding/actual.js
new file mode 100644
index 0000000000..7923919210
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-unused-object-pattern-binding/actual.js
@@ -0,0 +1,7 @@
+try {
+  throw 0;
+} catch ({
+  message
+}) {
+  console.log("it failed, but this code executes");
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-unused-object-pattern-binding/expected.js b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-unused-object-pattern-binding/expected.js
new file mode 100644
index 0000000000..7923919210
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-unused-object-pattern-binding/expected.js
@@ -0,0 +1,7 @@
+try {
+  throw 0;
+} catch ({
+  message
+}) {
+  console.log("it failed, but this code executes");
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-array-pattern-binding/actual.js b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-array-pattern-binding/actual.js
new file mode 100644
index 0000000000..20dea187c0
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-array-pattern-binding/actual.js
@@ -0,0 +1,5 @@
+try {
+  throw 0;
+} catch ([message]) {
+  console.log(message);
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-array-pattern-binding/expected.js b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-array-pattern-binding/expected.js
new file mode 100644
index 0000000000..20dea187c0
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-array-pattern-binding/expected.js
@@ -0,0 +1,5 @@
+try {
+  throw 0;
+} catch ([message]) {
+  console.log(message);
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-binding-variable/actual.js b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-binding-variable/actual.js
new file mode 100644
index 0000000000..098cfdf7fe
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-binding-variable/actual.js
@@ -0,0 +1,5 @@
+try {
+  throw 0;
+} catch (e) {
+  e = new TypeError('A new variable is not being declared or initialized; the catch binding is being referenced and cannot be removed.');
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-binding-variable/expected.js b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-binding-variable/expected.js
new file mode 100644
index 0000000000..098cfdf7fe
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-binding-variable/expected.js
@@ -0,0 +1,5 @@
+try {
+  throw 0;
+} catch (e) {
+  e = new TypeError('A new variable is not being declared or initialized; the catch binding is being referenced and cannot be removed.');
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-binding/actual.js b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-binding/actual.js
new file mode 100644
index 0000000000..d0335caa35
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-binding/actual.js
@@ -0,0 +1,5 @@
+try {
+  throw 0;
+} catch (err) {
+  console.log(err, "it failed, but this code executes");
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-binding/expected.js b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-binding/expected.js
new file mode 100644
index 0000000000..d0335caa35
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-binding/expected.js
@@ -0,0 +1,5 @@
+try {
+  throw 0;
+} catch (err) {
+  console.log(err, "it failed, but this code executes");
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-object-pattern-binding/actual.js b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-object-pattern-binding/actual.js
new file mode 100644
index 0000000000..5d0ec55ede
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-object-pattern-binding/actual.js
@@ -0,0 +1,7 @@
+try {
+  throw 0;
+} catch ({
+  message
+}) {
+  console.log(message);
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-object-pattern-binding/expected.js b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-object-pattern-binding/expected.js
new file mode 100644
index 0000000000..5d0ec55ede
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-block-used-object-pattern-binding/expected.js
@@ -0,0 +1,7 @@
+try {
+  throw 0;
+} catch ({
+  message
+}) {
+  console.log(message);
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-finally-unused-binding/actual.js b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-finally-unused-binding/actual.js
new file mode 100644
index 0000000000..ba0539adf7
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-finally-unused-binding/actual.js
@@ -0,0 +1,7 @@
+try {
+  throw 0;
+} catch (err) {
+  console.log("it failed, but this code executes");
+} finally {
+  console.log("this code also executes");
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-finally-unused-binding/expected.js b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-finally-unused-binding/expected.js
new file mode 100644
index 0000000000..31e6ca9ff4
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-finally-unused-binding/expected.js
@@ -0,0 +1,7 @@
+try {
+  throw 0;
+} catch {
+  console.log("it failed, but this code executes");
+} finally {
+  console.log("this code also executes");
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-finally-used-binding/actual.js b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-finally-used-binding/actual.js
new file mode 100644
index 0000000000..fb09c402a5
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-finally-used-binding/actual.js
@@ -0,0 +1,7 @@
+try {
+  throw 0;
+} catch (err) {
+  console.log(err, "it failed, but this code executes");
+} finally {
+  console.log("this code also executes");
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-finally-used-binding/expected.js b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-finally-used-binding/expected.js
new file mode 100644
index 0000000000..fb09c402a5
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/fixtures/remove-unused-catch-binding/try-catch-finally-used-binding/expected.js
@@ -0,0 +1,7 @@
+try {
+  throw 0;
+} catch (err) {
+  console.log(err, "it failed, but this code executes");
+} finally {
+  console.log("this code also executes");
+}
diff --git a/packages/babel-plugin-transform-remove-unused-catch-binding/test/index.js b/packages/babel-plugin-transform-remove-unused-catch-binding/test/index.js
new file mode 100644
index 0000000000..09cfbc31f5
--- /dev/null
+++ b/packages/babel-plugin-transform-remove-unused-catch-binding/test/index.js
@@ -0,0 +1,3 @@
+import runner from "babel-helper-plugin-test-runner";
+
+runner(__dirname);