The Yokosuka P1Y Ginga (銀河, "Galaxy") is a twin-engine, land-based bomber developed for the Japanese Imperial Navy in World War II.

Problems with the availability of enough reliable Nakajima Homare engines led to their replacement by the Mitsubishi Kasei in the P1Y2-S night-fighter version.

During the last stages of the War, the P1Y was used as a kamikaze aircraft against the United States Navy during the Okinawa Campaign in Operation Tan No.

A night fighter version, the P1Y2-S Kyokko (極光, "Aurora"), with Mitsubishi Kasei engines was equipped with radar and a Schräge Musik-style upward-firing, as well as forward-firing, 20 mm cannon.

A total of ninety-six were produced by Kawanishi,[5] but, due to inadequate high-altitude performance against the B-29 Superfortress, many were converted back to Ginga bombers.