is a waterway in the Western Province
of the Solomon Islands
. It lies between the islands of Vella Lavella
to the northwest, Kolombangara
to the southeast, and Ghizo
to the south. It connects New Georgia Sound
("The Slot") to the northeast with the Solomon Sea
to the south.
During the Solomon Islands campaign in World War II, the Battle of Vella Gulf was fought here between destroyers of the Imperial Japanese Navy and the United States Navy on the night of 6–7 August 1943.