diff --git a/libs/ardour/globals.cc b/libs/ardour/globals.cc
index 39bcd1b79e..054ffffe51 100644
--- a/libs/ardour/globals.cc
+++ b/libs/ardour/globals.cc
@@ -390,6 +390,8 @@ ARDOUR::cleanup ()
 #ifdef LXVST_SUPPORT
 	vstfx_exit();
 #endif
+	delete &PluginManager::instance();
+	delete Config;
 	PBD::cleanup ();
 
 	return;
diff --git a/libs/ardour/midi_diskstream.cc b/libs/ardour/midi_diskstream.cc
index 7c75c8d2e6..1cc69263f0 100644
--- a/libs/ardour/midi_diskstream.cc
+++ b/libs/ardour/midi_diskstream.cc
@@ -138,6 +138,8 @@ MidiDiskstream::init ()
 MidiDiskstream::~MidiDiskstream ()
 {
 	Glib::Threads::Mutex::Lock lm (state_lock);
+	delete _playback_buf;
+	delete _capture_buf;
 }
 
 
diff --git a/libs/ardour/panner_manager.cc b/libs/ardour/panner_manager.cc
index 0cc95c8e7a..95136c2951 100644
--- a/libs/ardour/panner_manager.cc
+++ b/libs/ardour/panner_manager.cc
@@ -124,6 +124,8 @@ PannerManager::panner_discover (string path)
 		if (i == panner_info.end()) {
 			panner_info.push_back (pinfo);
 			DEBUG_TRACE (DEBUG::Panning, string_compose(_("Panner discovered: \"%1\" in %2\n"), pinfo->descriptor.name, path));
+		} else {
+			delete pinfo;
 		}
 	}
 
diff --git a/libs/gtkmm2ext/gtk_ui.cc b/libs/gtkmm2ext/gtk_ui.cc
index 294c004a06..6a490e1bb0 100644
--- a/libs/gtkmm2ext/gtk_ui.cc
+++ b/libs/gtkmm2ext/gtk_ui.cc
@@ -70,6 +70,7 @@ template class AbstractUI<Gtkmm2ext::UIRequest>;
 UI::UI (string namestr, int *argc, char ***argv)
 	: AbstractUI<UIRequest> (namestr)
 	, _receiver (*this)
+	, errors (0)
 	  
 {
 	theMain = new Main (argc, argv);
@@ -124,6 +125,7 @@ UI::UI (string namestr, int *argc, char ***argv)
 UI::~UI ()
 {
 	_receiver.hangup ();
+	delete (errors);
 }
 
 bool
diff --git a/libs/pbd/pbd/abstract_ui.cc b/libs/pbd/pbd/abstract_ui.cc
index 8841301afe..cf5292b9e6 100644
--- a/libs/pbd/pbd/abstract_ui.cc
+++ b/libs/pbd/pbd/abstract_ui.cc
@@ -211,6 +211,7 @@ AbstractUI<RequestObject>::handle_ui_requests ()
                                         if (vec.buf[0]->invalidation) {
                                                 vec.buf[0]->invalidation->requests.remove (vec.buf[0]);
                                         }
+                                        delete vec.buf[0];
                                         i->second->increment_read_ptr (1);
                                 }
                         } 
@@ -326,6 +327,7 @@ AbstractUI<RequestObject>::send_request (RequestObject *req)
 		*/
 		DEBUG_TRACE (PBD::DEBUG::AbstractUI, string_compose ("%1/%2 direct dispatch of request type %3\n", name(), pthread_name(), req->type));
 		do_request (req);
+		delete req;
 	} else {	
 
 		/* If called from a different thread, we first check to see if