Gabumon (ガブモン)[70]Voiced by: Mayumi Yamaguchi[10] (Japanese); Kirk Thornton, Jeff Nimoy ("Revenge of Diaboromon") (English)Gabumon is a reptile-like Digimon wearing a wolf pelt and Matt's partner. He is shy and very loyal to Matt. While Gabumon reasons with him whenever he falls too far, he still supports and trusts Matt with any decision he makes. His Digivolutions have ice-based attacks.

• Punimon (プニモン) is Gabumon's Baby form, a squishy round Digimon with three horns on his head.
• Tsunomon (ツノモン) is Gabumon's In-training form, a spherical Digimon with orange fur and a horn above his face.
• Garurumon (ガルルモン) is Gabumon's Champion form, a giant wolf Digimon with an incredible agility.
• WereGarurumon (ワーガルルモン, Wāgarurumon) is Gabumon's Ultimate form, a bipedal werewolf Digimon with very sharp claws.
  • WereGarurumon Sagittarius Mode is the upgraded version form of WereGarurumon that only appears in the 2020 Adventure series. He is armed with four pairs of mechanical blades.
• MetalGarurumon (メタルガルルモン, Metarugarurumon) is Gabumon's Mega form, an cyborg wolf Digimon with built-in weaponry and flight capability via his blade-shaped wings.
• CresGarurumon is Gabumon's alternate Mega form, a humanoid golden werewolf who wields a blade. This form only appears in the 2020 Adventure series, where he fought Zanbamon and defeated him.
• Gabumon (Bond of Friendship) (ガブモン -友情の絆-, Gabumon -Yujo no Kizuna-) is Gabumon's final form, a Digivolution forged by the bond between Gabumon and Matt. This form only appears in Digimon Adventure: Last Evolution Kizuna during the final fight with Eosmon.[71]