diff --git a/source/blender/blenkernel/BKE_context.h b/source/blender/blenkernel/BKE_context.h
index 5c534803781..af9a95e1753 100644
--- a/source/blender/blenkernel/BKE_context.h
+++ b/source/blender/blenkernel/BKE_context.h
@@ -288,6 +288,9 @@ enum eContextObjectMode CTX_data_mode_enum(const bContext *C);
 void CTX_data_main_set(bContext *C, struct Main *bmain);
 void CTX_data_scene_set(bContext *C, struct Scene *scene);
 
+/* Only Outliner currently! */
+int CTX_data_selected_ids(const bContext *C, ListBase *list);
+
 int CTX_data_selected_editable_objects(const bContext *C, ListBase *list);
 int CTX_data_selected_editable_bases(const bContext *C, ListBase *list);
 
diff --git a/source/blender/blenkernel/intern/context.c b/source/blender/blenkernel/intern/context.c
index a1edfd1c56d..2e4d3d62925 100644
--- a/source/blender/blenkernel/intern/context.c
+++ b/source/blender/blenkernel/intern/context.c
@@ -1202,6 +1202,11 @@ ToolSettings *CTX_data_tool_settings(const bContext *C)
   return NULL;
 }
 
+int CTX_data_selected_ids(const bContext *C, ListBase *list)
+{
+  return ctx_data_collection_get(C, "selected_ids", list);
+}
+
 int CTX_data_selected_nodes(const bContext *C, ListBase *list)
 {
   return ctx_data_collection_get(C, "selected_nodes", list);
diff --git a/source/blender/editors/space_outliner/CMakeLists.txt b/source/blender/editors/space_outliner/CMakeLists.txt
index 8e989f5568e..e0262371559 100644
--- a/source/blender/editors/space_outliner/CMakeLists.txt
+++ b/source/blender/editors/space_outliner/CMakeLists.txt
@@ -34,6 +34,7 @@ set(INC
 
 set(SRC
   outliner_collections.c
+  outliner_context.c
   outliner_dragdrop.c
   outliner_draw.c
   outliner_edit.c
diff --git a/source/blender/editors/space_outliner/outliner_context.c b/source/blender/editors/space_outliner/outliner_context.c
new file mode 100644
index 00000000000..760fa8e4604
--- /dev/null
+++ b/source/blender/editors/space_outliner/outliner_context.c
@@ -0,0 +1,73 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2017 Blender Foundation.
+ * All rights reserved.
+ */
+
+/** \file
+ * \ingroup spoutliner
+ */
+
+#include "BLI_listbase.h"
+
+#include "BKE_context.h"
+
+#include "DNA_space_types.h"
+
+#include "RNA_access.h"
+
+#include "outliner_intern.h"
+
+static void outliner_context_selected_ids_recursive(const ListBase *subtree,
+                                                    bContextDataResult *result)
+{
+  LISTBASE_FOREACH (const TreeElement *, te, subtree) {
+    const TreeStoreElem *tse = TREESTORE(te);
+    if ((tse->flag & TSE_SELECTED) && (ELEM(tse->type, 0, TSE_LAYER_COLLECTION))) {
+      CTX_data_id_list_add(result, tse->id);
+    }
+    outliner_context_selected_ids_recursive(&te->subtree, result);
+  }
+}
+
+static void outliner_context_selected_ids(const SpaceOutliner *space_outliner,
+                                          bContextDataResult *result)
+{
+  outliner_context_selected_ids_recursive(&space_outliner->tree, result);
+  CTX_data_type_set(result, CTX_DATA_TYPE_COLLECTION);
+}
+
+const char *outliner_context_dir[] = {"selected_ids", NULL};
+
+int /*eContextResult*/ outliner_context(const bContext *C,
+                                        const char *member,
+                                        bContextDataResult *result)
+{
+  SpaceOutliner *space_outliner = CTX_wm_space_outliner(C);
+
+  if (CTX_data_dir(member)) {
+    CTX_data_dir_set(result, outliner_context_dir);
+    return CTX_RESULT_OK;
+  }
+  else if (CTX_data_equals(member, "selected_ids")) {
+    outliner_context_selected_ids(space_outliner, result);
+    return CTX_RESULT_OK;
+  }
+  /* Note: Querying non-ID selection could also work if tree elements stored their matching RNA
+   * struct type. */
+
+  return CTX_RESULT_MEMBER_NOT_FOUND;
+}
diff --git a/source/blender/editors/space_outliner/outliner_intern.h b/source/blender/editors/space_outliner/outliner_intern.h
index 0294b4836c8..ccb481197e4 100644
--- a/source/blender/editors/space_outliner/outliner_intern.h
+++ b/source/blender/editors/space_outliner/outliner_intern.h
@@ -32,6 +32,7 @@ extern "C" {
 /* internal exports only */
 
 struct ARegion;
+struct bContextDataResult;
 struct EditBone;
 struct ID;
 struct ListBase;
@@ -561,6 +562,12 @@ void outliner_tag_redraw_avoid_rebuild_on_open_change(const struct SpaceOutliner
 
 void outliner_sync_selection(const struct bContext *C, struct SpaceOutliner *space_outliner);
 
+/* outliner_context.c ------------------------------------------- */
+
+int outliner_context(const struct bContext *C,
+                     const char *member,
+                     struct bContextDataResult *result);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/source/blender/editors/space_outliner/space_outliner.c b/source/blender/editors/space_outliner/space_outliner.c
index 3d675fdd9e4..c7c207caca0 100644
--- a/source/blender/editors/space_outliner/space_outliner.c
+++ b/source/blender/editors/space_outliner/space_outliner.c
@@ -451,6 +451,7 @@ void ED_spacetype_outliner(void)
   st->dropboxes = outliner_dropboxes;
   st->id_remap = outliner_id_remap;
   st->deactivate = outliner_deactivate;
+  st->context = outliner_context;
 
   /* regions: main window */
   art = MEM_callocN(sizeof(ARegionType), "spacetype outliner region");