2003–04 Japan Figure Skating Championships

The 2003–04 Japan Figure Skating Championships were the Japan Figure Skating Championships of the 2003–04 season. They were the 72nd Championships to be held. They were held at the Big Hat arena in Nagano between December 25 and 26, 2003. The competition was used to decide Japan's entries to the 2004 World Championships and the 2004 Four Continents Championships. The entries to the 2004 World Junior Championships were decided at the Japanese Junior Championships.

Skaters competed on the senior level in the disciplines of men's singles, ladies' singles, and ice dancing. No pairs competition was held due to a lack of entrants.