This is the list of all K-1 champions.
Included are the K-1 World Grand Prix and K-1 World MAX champions as well as all the preliminary tournament winners from the events promoted by FEG (1993– 2011), K-1 Global (2012–2023), and K-1 (2014–present), following the former's dissolution.
The list does not contain K-1's mixed martial arts branch Hero's and DREAM champions.
[1] K-1 and FEG (1993-2010), K-1 (2024–present) K-1 and FEG (1993-2010), K-1 (2024–present)
K-1 WORLD GP JAPAN (2014-2023), K-1 WORLD MAX (2024-present) Openweight -95 kg -85 kg -85 kg : Light Heavyweight -70 kg Weight limit: 82 kg Weight limit: 75 kg