Digimon Tamers: Runaway Locomon is a 2002 Japanese animated adventure short film based on the Digimon franchise created by Akiyoshi Hongo, and the second film for Digimon Tamers series, following Battle of Adventurers (2001). The short film is directed by Tetsuji Nakamura, written by Hiro Masaki, and produced by Toei Animation. The short film was released in Japan on March 2, 2002, as part of Toei Animation Spring 2002 Animation Fair, double featuring with One Piece: Chopper's Kingdom on the Strange Island of Animals film.

In the short film, set after the series finale, Tamers try to stop a train Digimon named Locomon on the Real World.