Ryoji Sai[1] (崔領二, Sai Ryōji, 최영이) (born Choi Young-ii June 3, 1980) is a Korean professional wrestler, mixed martial artist and promoter who currently owns and operates Pro Wrestling Land's End, where he is a former All Asia Heavyweight Champion.

He is best known for working for Pro Wrestling Zero1, where he is a former two-time World Heavyweight Champion.

Ryoji Sai is a 3rd Generation Zainichi Korean that was born in Osaka, Japan.

Ryoji twice finished as the runner-up in ZERO1 Fire Festival tournaments in both 2007 and 2006, losing to Masato Tanaka.

In late 2008 and early 2009, Sai took part on the popular Japan Fuji TV show Ainori (あいのり) under the name of "Wrestler" (レスラー).