Index: source/blender/windowmanager/intern/wm_operators.c
===================================================================
--- source/blender/windowmanager/intern/wm_operators.c	(revision 43501)
+++ source/blender/windowmanager/intern/wm_operators.c	(working copy)
@@ -3807,6 +3807,7 @@
 	WM_modalkeymap_assign(keymap, "MARKER_OT_select_border");
 	WM_modalkeymap_assign(keymap, "NLA_OT_select_border");
 	WM_modalkeymap_assign(keymap, "NODE_OT_select_border");
+	WM_modalkeymap_assign(keymap, "OUTLINER_OT_select_border");
 //	WM_modalkeymap_assign(keymap, "SCREEN_OT_border_select"); // template
 	WM_modalkeymap_assign(keymap, "SEQUENCER_OT_select_border");
 	WM_modalkeymap_assign(keymap, "SEQUENCER_OT_view_ghost_border");
Index: source/blender/editors/space_outliner/outliner_select.c
===================================================================
--- source/blender/editors/space_outliner/outliner_select.c	(revision 43501)
+++ source/blender/editors/space_outliner/outliner_select.c	(working copy)
@@ -55,6 +55,7 @@
 #include "BLI_blenlib.h"
 #include "BLI_utildefines.h"
 #include "BLI_math_base.h"
+#include "BLI_rect.h"
 
 #if defined WIN32 && !defined _LIBC
 # include "BLI_fnmatch.h" /* use fnmatch included in blenlib */
@@ -875,3 +876,92 @@
 }
 
 /* ****************************************************** */
+
+/* **************** Border Select Tool ****************** */
+static void outliner_item_border_select(Scene *scene, SpaceOops *soops, rctf *rectf, TreeElement *te, int gesture_mode)
+{
+	TreeStoreElem *tselem= TREESTORE(te);
+	Object *ob;
+	Base *base;
+	rctf iconrect;
+
+	iconrect.xmin= te->xs + UI_UNIT_X;
+	iconrect.xmax= te->xs + 2.0f*UI_UNIT_X;
+	iconrect.ymin= te->ys;
+	iconrect.ymax= te->ys + UI_UNIT_Y;
+
+	if(te->idcode == ID_OB) {
+		if(BLI_isect_rctf(rectf, &iconrect, NULL)) {
+			ob= (Object *)find_id("OB", te->name);
+			base= object_in_scene(ob, scene);
+			if(gesture_mode==GESTURE_MODAL_SELECT) {
+				if((base->flag & SELECT)==0)
+					ED_base_object_select(base, BA_SELECT);
+			}
+			else
+				if(base->flag & SELECT) {
+					base->flag= ob->flag &= ~SELECT;
+				}
+		}
+	}
+
+	/* Look at its children. */
+	if(((tselem->flag & TSE_CLOSED)==0) && (te->subtree.first)) {
+		for(te = te->subtree.first; te; te = te->next) {
+			outliner_item_border_select(scene, soops, rectf, te, gesture_mode);
+		}
+	}
+	return;
+}
+
+static int outliner_border_select_exec(bContext *C, wmOperator *op)
+{
+	Scene *scene= CTX_data_scene(C);
+	SpaceOops *soops= CTX_wm_space_outliner(C);
+	ARegion *ar= CTX_wm_region(C);
+	TreeElement *te;
+	rcti rect;
+	rctf rectf;
+	int gesture_mode= RNA_int_get(op->ptr, "gesture_mode");
+
+	rect.xmin= RNA_int_get(op->ptr, "xmin");
+	rect.ymin= RNA_int_get(op->ptr, "ymin");
+	UI_view2d_region_to_view(&ar->v2d, rect.xmin, rect.ymin, &rectf.xmin, &rectf.ymin);
+
+	rect.xmax= RNA_int_get(op->ptr, "xmax");
+	rect.ymax= RNA_int_get(op->ptr, "ymax");
+	UI_view2d_region_to_view(&ar->v2d, rect.xmax, rect.ymax, &rectf.xmax, &rectf.ymax);
+
+	for(te= soops->tree.first; te; te= te->next) {
+		outliner_item_border_select(scene, soops, &rectf, te, gesture_mode);
+	}
+
+	WM_event_add_notifier(C, NC_SCENE|ND_OB_SELECT, scene);
+	ED_region_tag_redraw(ar);
+
+	return OPERATOR_FINISHED;
+}
+
+void OUTLINER_OT_select_border(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name= "Border Select";
+	ot->idname= "OUTLINER_OT_select_border";
+	ot->description= "Use box selection to select tree elements";
+
+	/* api callbacks */
+	ot->invoke= WM_border_select_invoke;
+	ot->exec= outliner_border_select_exec;
+	ot->modal= WM_border_select_modal;
+	ot->cancel= WM_border_select_cancel;
+
+	ot->poll= ED_operator_outliner_active;
+
+	/* flags */
+	ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
+
+	/* rna */
+	WM_operator_properties_gesture_border(ot, FALSE);
+}
+
+/* ****************************************************** */
Index: source/blender/editors/space_outliner/outliner_ops.c
===================================================================
--- source/blender/editors/space_outliner/outliner_ops.c	(revision 43501)
+++ source/blender/editors/space_outliner/outliner_ops.c	(working copy)
@@ -49,6 +49,7 @@
 void outliner_operatortypes(void)
 {
 	WM_operatortype_append(OUTLINER_OT_item_activate);
+	WM_operatortype_append(OUTLINER_OT_select_border);
 	WM_operatortype_append(OUTLINER_OT_item_openclose);
 	WM_operatortype_append(OUTLINER_OT_item_rename);
 	WM_operatortype_append(OUTLINER_OT_operation);
@@ -89,6 +90,9 @@
 	RNA_boolean_set(kmi->ptr, "extend", FALSE);
 	kmi = WM_keymap_add_item(keymap, "OUTLINER_OT_item_activate", LEFTMOUSE, KM_CLICK, KM_SHIFT, 0);
 	RNA_boolean_set(kmi->ptr, "extend", TRUE);
+
+	WM_keymap_add_item(keymap, "OUTLINER_OT_select_border", BKEY, KM_PRESS, 0, 0);
+	RNA_boolean_set(WM_keymap_add_item(keymap, "OUTLINER_OT_select_border", EVT_TWEAK_L, KM_ANY, 0, 0)->ptr, "tweak", 1);
 	
 	kmi = WM_keymap_add_item(keymap, "OUTLINER_OT_item_openclose", RETKEY, KM_PRESS, 0, 0);
 	RNA_boolean_set(kmi->ptr, "all", FALSE);
Index: source/blender/editors/space_outliner/outliner_intern.h
===================================================================
--- source/blender/editors/space_outliner/outliner_intern.h	(revision 43501)
+++ source/blender/editors/space_outliner/outliner_intern.h	(working copy)
@@ -167,6 +167,8 @@
 int tree_element_type_active(struct bContext *C, struct Scene *scene, struct SpaceOops *soops, TreeElement *te, TreeStoreElem *tselem, int set);
 int tree_element_active(struct bContext *C, struct Scene *scene, SpaceOops *soops, TreeElement *te, int set);
 
+void OUTLINER_OT_select_border(struct wmOperatorType *ot);
+
 /* outliner_edit.c ---------------------------------------------- */
 
 void outliner_do_object_operation(struct bContext *C, struct Scene *scene, struct SpaceOops *soops, struct ListBase *lb,