Arcade Physics Colliders have a name property and setName method.

src/physics/arcade/Collider.js

@@ -38,6 +38,15 @@ var Collider = new Class({
          */
         this.world = world;
 
+        /**
+         * [description]
+         *
+         * @name Phaser.Physics.Arcade.Collider#name
+         * @type {string}
+         * @since 3.0.0
+         */
+        this.name = '';
+
         /**
          * [description]
          *
@@ -103,6 +112,23 @@ var Collider = new Class({
         this.callbackContext = callbackContext;
     },
 
+    /**
+     * [description]
+     *
+     * @method Phaser.Physics.Arcade.Collider#setName
+     * @since 3.0.0
+     *
+     * @param {string} name - [description]
+     *
+     * @return {Phaser.Physics.Arcade.Collider} [description]
+     */
+    setName: function (name)
+    {
+        this.name = name;
+
+        return this;
+    },
+
     /**
      * [description]
      *