diff --git a/README.md b/README.md
index 54986fa..0ce995e 100644
--- a/README.md
+++ b/README.md
@@ -60,6 +60,10 @@ var dir = requireDir('./path/to/dir', {recurse: true});
 (`node_modules` within subdirectories will be ignored.)
 Default is false.
 
+`camelcase`: Automatically add camelcase aliases for files with dash- and
+underscore-separated names. E.g. `foo-bar.js` will be exposed under both the
+original `'foo-bar'` name as well as a `'fooBarBaz'` alias. Default is false.
+
 `duplicates`: By default, if multiple files share the same basename, only the
 highest priority one is `require()`'d and returned. (Priority is determined by
 the order of `require.extensions` keys, with directories taking precedence
diff --git a/index.js b/index.js
index b47a19f..b1f8ae1 100644
--- a/index.js
+++ b/index.js
@@ -16,6 +16,7 @@ module.exports = function requireDir(dir, opts) {
     // default arguments:
     dir = dir || '.';
     opts = opts || {};
+    var camelcase = !!opts.camelcase;
 
     // resolve the path to an absolute one:
     dir = Path.resolve(parentDir, dir);
@@ -120,5 +121,22 @@ module.exports = function requireDir(dir, opts) {
         }
     }
 
+    if (opts.camelcase) {
+        for (var base in map) {
+            // protect against enumerable object prototype extensions:
+            if (!map.hasOwnProperty(base)) {
+                continue;
+            }
+
+            map[toCamelCase(base)] = map[base];
+        }
+    }
+
     return map;
 };
+
+function toCamelCase(str) {
+    return str.replace(/[_-][a-z]/ig, function (s) {
+        return s.substring(1).toUpperCase();
+    });
+}
diff --git a/test/camelcase.js b/test/camelcase.js
new file mode 100644
index 0000000..83be585
--- /dev/null
+++ b/test/camelcase.js
@@ -0,0 +1,20 @@
+var assert = require('assert');
+var requireDir = require('..');
+
+assert.deepEqual(requireDir('./camelcase', {
+    recurse: true,
+    camelcase: true
+}), {
+    aMain: 'a main',
+    'a_main': 'a main',
+    subDir: {
+        aSub: 'a sub',
+        'a-sub': 'a sub'
+    },
+    'sub-dir': {
+        aSub: 'a sub',
+        'a-sub': 'a sub'
+    }
+});
+
+console.log('Camelcase tests passed.');
diff --git a/test/camelcase/a_main.js b/test/camelcase/a_main.js
new file mode 100644
index 0000000..4b0ed58
--- /dev/null
+++ b/test/camelcase/a_main.js
@@ -0,0 +1 @@
+module.exports = 'a main';
diff --git a/test/camelcase/sub-dir/a-sub.js b/test/camelcase/sub-dir/a-sub.js
new file mode 100644
index 0000000..8d25d5e
--- /dev/null
+++ b/test/camelcase/sub-dir/a-sub.js
@@ -0,0 +1 @@
+module.exports = 'a sub';