diff --git a/docs/changes.txt b/docs/changes.txt
index d467990b48..51b18681d4 100644
--- a/docs/changes.txt
+++ b/docs/changes.txt
@@ -459,6 +459,7 @@ OSX:
 - Implement wxFileType::GetOpenCommand().
 - wxGetOsVersion() now returns more sensible version numbers, e.g. 10 and 6
   for OS X 10.6.
+- Added wxApp::MacOpenFiles and deprecated wxApp::MacOpenFile.
 
 GTK:
 
diff --git a/include/wx/osx/app.h b/include/wx/osx/app.h
index 47315c6b62..011d0dd021 100644
--- a/include/wx/osx/app.h
+++ b/include/wx/osx/app.h
@@ -122,7 +122,10 @@ public:
     virtual short         MacHandleAEQuit(const WXAPPLEEVENTREF event , WXAPPLEEVENTREF reply) ;
     virtual short         MacHandleAERApp(const WXAPPLEEVENTREF event , WXAPPLEEVENTREF reply) ;
 #endif
-    // in response of an open-document apple event
+    // in response of an openFiles message with Cocoa and an
+    // open-document apple event with Carbon
+    virtual void         MacOpenFiles(const wxArrayString &fileNames) ;
+    // called by MacOpenFiles for each file.
     virtual void         MacOpenFile(const wxString &fileName) ;
     // in response of a get-url apple event
     virtual void         MacOpenURL(const wxString &url) ;
diff --git a/interface/wx/app.h b/interface/wx/app.h
index f3530be291..d5badd57d1 100644
--- a/interface/wx/app.h
+++ b/interface/wx/app.h
@@ -569,7 +569,7 @@ public:
 
         Under Windows and Linux/Unix, you should parse the command line
         arguments and check for files to be opened when starting your
-        application. Under OS X, you need to override MacOpenFile()
+        application. Under OS X, you need to override MacOpenFiles()
         since command line arguments are used differently there.
 
         You may use the wxCmdLineParser to parse command line arguments.
@@ -802,16 +802,35 @@ public:
     */
     virtual void MacNewFile();
 
+    /**
+        Called in response of an openFiles message with Cocoa, or an
+        "open-document" Apple event with Carbon.
+
+        You need to override this method in order to open one or more document
+        files after the user double clicked on it or if the files and/or
+        folders were dropped on either the application in the dock or the
+        application icon in Finder.
+
+        By default this method calls MacOpenFile for each file/folder.
+
+        @onlyfor{wxosx}
+
+        @since 2.9.3
+    */
+    virtual void MacOpenFiles(const wxArrayString& fileNames);
+
     /**
         Called in response of an "open-document" Apple event.
 
-        You need to override this method in order to open a document file after the
-        user double clicked on it or if the document file was dropped on either the
-        running application or the application icon in Finder.
+        @deprecated
+        This function is kept mostly for backwards compatibility. Please
+        override wxApp::MacOpenFiles method instead in any new code.
 
         @onlyfor{wxosx}
     */
-    virtual void MacOpenFile(const wxString& fileName);
+    wxDEPRECATED_BUT_USED_INTERNALLY(
+        virtual void MacOpenFile(const wxString& fileName)
+    );
 
     /**
         Called in response of a "get-url" Apple event.
diff --git a/samples/mediaplayer/mediaplayer.cpp b/samples/mediaplayer/mediaplayer.cpp
index 1ca1da55f6..1d1698363e 100644
--- a/samples/mediaplayer/mediaplayer.cpp
+++ b/samples/mediaplayer/mediaplayer.cpp
@@ -143,7 +143,7 @@ class wxMediaPlayerApp : public wxApp
 {
 public:
 #ifdef __WXMAC__
-    virtual void MacOpenFile(const wxString & fileName );
+    virtual void MacOpenFiles(const wxArrayString & fileNames );
 #endif
 
     virtual bool OnInit();
@@ -463,10 +463,10 @@ bool wxMediaPlayerApp::OnInit()
 
 #ifdef __WXMAC__
 
-void wxMediaPlayerApp::MacOpenFile(const wxString & fileName )
+void wxMediaPlayerApp::MacOpenFiles(const wxArrayString & fileNames )
 {
-    // Called when a user drags a file over our app
-    m_frame->DoOpenFile(fileName, true /* new page */);
+    // Called when a user drags files over our app
+    m_frame->DoOpenFile(fileNames[0], true /* new page */);
 }
 
 #endif // __WXMAC__
diff --git a/src/osx/carbon/app.cpp b/src/osx/carbon/app.cpp
index cf1e53b104..722f9cc2f8 100644
--- a/src/osx/carbon/app.cpp
+++ b/src/osx/carbon/app.cpp
@@ -130,7 +130,7 @@ pascal OSErr AEHandleGURL( const AppleEvent *event , AppleEvent *reply , SRefCon
 }
 
 
-// AEODoc Calls MacOpenFile on each of the files passed
+// AEODoc Calls MacOpenFiles with all of the files passed
 
 short wxApp::MacHandleAEODoc(const WXEVENTREF event, WXEVENTREF WXUNUSED(reply))
 {
@@ -158,6 +158,7 @@ short wxApp::MacHandleAEODoc(const WXEVENTREF event, WXEVENTREF WXUNUSED(reply))
     wxString fName ;
     FSRef theRef ;
 
+    wxArrayString fileNames;
     for (i = 1; i <= itemsInList; i++)
     {
         AEGetNthPtr(
@@ -165,9 +166,11 @@ short wxApp::MacHandleAEODoc(const WXEVENTREF event, WXEVENTREF WXUNUSED(reply))
             (Ptr)&theRef, sizeof(theRef), &actualSize);
         fName = wxMacFSRefToPath( &theRef ) ;
 
-        MacOpenFile(fName);
+        fileNames.Add(fName);
     }
 
+    MacOpenFiles(fileNames);
+
     return noErr;
 }
 
@@ -274,6 +277,16 @@ short wxApp::MacHandleAERApp(const WXEVENTREF WXUNUSED(event) , WXEVENTREF WXUNU
 // Support Routines linking the Mac...File Calls to the Document Manager
 //----------------------------------------------------------------------
 
+void wxApp::MacOpenFiles(const wxArrayString & fileNames )
+{
+    size_t i;
+    const size_t fileCount = fileNames.GetCount();
+    for (i = 0; i < fileCount; i++)
+    {
+        MacOpenFile(fileNames[i]);
+    }
+}
+
 void wxApp::MacOpenFile(const wxString & fileName )
 {
 #if wxUSE_DOC_VIEW_ARCHITECTURE
diff --git a/src/osx/cocoa/utils.mm b/src/osx/cocoa/utils.mm
index c7879d0e6b..cb71db77a3 100644
--- a/src/osx/cocoa/utils.mm
+++ b/src/osx/cocoa/utils.mm
@@ -55,12 +55,18 @@ void wxBell()
     wxUnusedVar(application);
 }
 
-- (BOOL)application:(NSApplication *)sender openFile:(NSString *)filename
+- (void)application:(NSApplication *)sender openFiles:(NSArray *)fileNames
 {
     wxUnusedVar(sender);
-    wxCFStringRef cf(wxCFRetain(filename));
-    wxTheApp->MacOpenFile(cf.AsString()) ;
-    return YES;
+    wxArrayString fileList;
+    size_t i;
+    const size_t count = [fileNames count];
+    for (i = 0; i < count; i++)
+    {
+        fileList.Add( wxCFStringRef::AsString([fileNames objectAtIndex:i]) );
+    }
+
+    wxTheApp->MacOpenFiles(fileList);
 }
 
 - (BOOL)applicationShouldOpenUntitledFile:(NSApplication *)sender
diff --git a/utils/helpview/src/helpview.cpp b/utils/helpview/src/helpview.cpp
index c774b628fa..ecd2a732f0 100644
--- a/utils/helpview/src/helpview.cpp
+++ b/utils/helpview/src/helpview.cpp
@@ -279,10 +279,10 @@ bool hvApp::OpenBook(wxHtmlHelpController* controller)
 
 #ifdef __WXMAC__
 /// Respond to Apple Event for opening a document
-void hvApp::MacOpenFile(const wxString& filename)
+void hvApp::MacOpenFiles(const wxArrayString& fileNames)
 {
     wxBusyCursor bcur;
-    wxFileName fileName(filename);
+    wxFileName fileName(fileNames[0]);
     m_helpController->AddBook(fileName);
     m_helpController->DisplayContents();
 }
diff --git a/utils/helpview/src/helpview.h b/utils/helpview/src/helpview.h
index 2d020e78cb..7b30b795f5 100644
--- a/utils/helpview/src/helpview.h
+++ b/utils/helpview/src/helpview.h
@@ -36,7 +36,7 @@ public:
 
 #ifdef __WXMAC__
     /// Respond to Apple Event for opening a document
-    virtual void MacOpenFile(const wxString& filename);
+    virtual void MacOpenFiles(const wxArrayString& fileNames);
 #endif
 
     /// Prompt the user for a book to open