The Tachikawa Ki-74 (Allied reporting name Patsy) was a Japanese experimental, long-range reconnaissance bomber of World War II.

A twin-engine, mid-wing monoplane, it was developed for the Imperial Japanese Army Air Service but never deployed in combat.

Though already conceived in 1939 as a long-range reconnaissance aircraft capable of reaching west of Lake Baikal when operating from bases in Manchukuo (Manchuria), the initial prototype Ki-74 only first flew as late as March 1944, after its development and primary mission requirement had been changed to capability of bombing and reconnaissance over the mainland United States.

[1] The aircraft was powered by two 1,641 kW (2,201 hp) Mitsubishi Ha-211-I [Ha-43-I] radial engines.

[2] The aircraft was fitted with self-sealing fuel tanks, armor, and a pressurized cabin for its crew of five.