
Tomoyuki Oka
- Date of Birth: 1991-06-12
- Place of Birth: Maebashi, Gunma Prefecture, Japan
Biography
Tomoyuki Oka, better known by his ring name Great-O-Khan, is a Japanese professional wrestler signed to New Japan Pro-Wrestling (NJPW), where he is a member of the United Empire stable. He also wrestl... Tomoyuki Oka, better known by his ring name Great-O-Khan, is a Japanese professional wrestler signed to New Japan Pro-Wrestling (NJPW), where he is a member of the United Empire stable. He also wrestles for NJPW's United Kingdom based partner promotion Revolution Pro Wrestling (RevPro), where he is the former Undisputed British Heavyweight Champion. In NJPW, he is a two-time IWGP Tag Team Champion (with Jeff Cobb).

NJPW Sakura Genesis 2017
• 2017 April

NJPW Power Struggle ~ Super Junior Tag League 2023
• 2023 November

NJPW Dominion 6.11 in Osaka-jo Hall
Action • 2017 June

NJPW Dominion 6.12 In Osaka-Jo Hall
• 2022 June

NJPW G1 Climax 33: Day 1
• 2023 July

AEW x NJPW Presents Forbidden Door
Action, Drama • 2022 June

NJPW Wrestle Kingdom 15: Night 1
Action, Drama • 2021 January

NJPW G1 Climax 33: Day 11
• 2023 August

NJPW G1 Climax 33: Day 13
• 2023 August

All Elite Wrestling: Dynamite
Action & Adventure, Drama • 2019 October