diff --git a/src/browser/ui/ReactDOMComponent.js b/src/browser/ui/ReactDOMComponent.js
index 71f80ecfbb..3f57ec4f92 100644
--- a/src/browser/ui/ReactDOMComponent.js
+++ b/src/browser/ui/ReactDOMComponent.js
@@ -285,7 +285,7 @@ ReactDOMComponent.Mixin = {
       // superfluous reconcile. It's possible for state to be mutable but such
       // change should trigger an update of the owner which would recreate
       // the element. We explicitly check for the existence of an owner since
-      // it's possible for a element created outside a composite to be
+      // it's possible for an element created outside a composite to be
       // deeply mutated and reused.
       return;
     }
diff --git a/src/browser/ui/ReactMount.js b/src/browser/ui/ReactMount.js
index b62e56080a..7124d59e3f 100644
--- a/src/browser/ui/ReactMount.js
+++ b/src/browser/ui/ReactMount.js
@@ -366,7 +366,7 @@ var ReactMount = {
         typeof nextElement === 'function' ?
           ' Instead of passing a component class, make sure to instantiate ' +
           'it by passing it to React.createElement.' :
-        // Check if it quacks like a element
+        // Check if it quacks like an element
         typeof nextElement.props !== "undefined" ?
           ' This may be caused by unintentionally loading two independent ' +
           'copies of React.' :
diff --git a/src/core/ReactComponent.js b/src/core/ReactComponent.js
index 2e400d3e20..ffc8334408 100644
--- a/src/core/ReactComponent.js
+++ b/src/core/ReactComponent.js
@@ -187,7 +187,7 @@ var ReactComponent = {
         '`render` method to pass the correct value as props to the component ' +
         'where it is created.'
       );
-      // This is a deoptimized path. We optimize for always having a element.
+      // This is a deoptimized path. We optimize for always having an element.
       // This creates an extra internal element.
       this._pendingElement = ReactElement.cloneAndReplaceProps(
         this._pendingElement || this._currentElement,
@@ -205,7 +205,7 @@ var ReactComponent = {
      * @internal
      */
     _setPropsInternal: function(partialProps, callback) {
-      // This is a deoptimized path. We optimize for always having a element.
+      // This is a deoptimized path. We optimize for always having an element.
       // This creates an extra internal element.
       var element = this._pendingElement || this._currentElement;
       this._pendingElement = ReactElement.cloneAndReplaceProps(
diff --git a/src/utils/OrderedMap.js b/src/utils/OrderedMap.js
index 59aa26ddb7..7e0c00b1af 100644
--- a/src/utils/OrderedMap.js
+++ b/src/utils/OrderedMap.js
@@ -175,7 +175,7 @@ var OrderedMapMethods = {
 
   /**
    * Returns the object for a given key, or `undefined` if not present. To
-   * distinguish a undefined entry vs not being in the set, use `has()`.
+   * distinguish an undefined entry vs not being in the set, use `has()`.
    *
    * @param {string} key String key to lookup the value for.
    * @return {Object?} Object at key `key`, or undefined if not in map.