Galerians: Rion (ガレリアンズ：リオン, Garerianzu: Rion) is a 2002 animated OVA based on the 1999 PlayStation video game Galerians. Originally released by Enterbrain in Japan in three episodes, Galerians: Rion was later combined into a single feature, licensed for the North America by Image Entertainment, and broadcast on MTV2 on 3 July 2004.

Galerians: Rion is set in the 26th century, and the human residents of Earth are under attack from a supercomputer called Dorothy. Intent on eliminating the human race, Dorothy faces some stiff competition from Rion Steiner, a teenager with superhuman powers.