The Type 89 15 cm cannon (八九式十五糎加農砲, Hachikyūshiki Jyūgosenchi Kanōhō) was the main gun of the Imperial Japanese Army's heavy artillery units.

[4] It was widely used from the Manchurian Incident to the end of World War II, for example, Nomonhan, Bataan and Corregidor Island, Okinawa.

[4] Limitations notwithstanding, the Type 89 15 cm cannon was easier to transport and set up than other Japanese heavy artillery pieces.

The Japanese were sufficiently satisfied with this gun to provide it with a fixed mount for siege use in 1930, but as a heavy field piece it had certain definite limitations.

The Type 89 had a variable hydro-pneumatic recoil system and an interrupted thread breech block; the latter had a mushroom head and stepped-up buttress-type screws.