Digimon BattleSpirit (デジモンテイマーズ バトルスピリット Dejimon Teimāzu Batorusupiritto?, "Digimon Tamers: Battle Spirit") is a fighting game originally developed and published by Bandai for the Japanese-only WonderSwan Color handheld system. It was later ported to Nintendo's Game Boy Advance for international releases in North America and Europe two years later.

The game features characters and Digimon that were included in the first three seasons of the animated series of the same name in a somewhat simplistic fighting scenario, and also has slightly arranged samples of the show's soundtrack.

While structured very similarly to a conventional fighting game, Digimon BattleSpirit is much more like a barebones representation of the genre, mostly due to the limitations of the handhelds it was released on. Each character only has a handful of special attacks they can perform, with the two action buttons, A and B, allowing them to jump or attack respectively.

Each match is won by collecting small blue spheres called "D-Spirits". These are obtained by hitting your opponent, which causes a few of them to fly from their body and scatter across the battlefield. Different attacks can produce more spheres to fly out, and the player who has collected the most by the time the round ends wins. Each character can also digivolve into their most powerful or "Ultimate" (Mega) form by touching a flying Digimon named Calumon that appears every so often in each stage. This form grants them different, more powerful attacks for a limited time.

As the player advances through each stage, they will occasionally have to battle a character named Impmon. Winning or losing this encounter has no bearing on the actual game progression itself, and only serves to award more points. In the final stage, the Digimon must face off against Millenniummon himself.