Mohsen Abdeyazdan (born 18 September 1977) is an Iranian karate coach, international referee, and sports administrator, primarily associated with the Shotokan style of karate. He began his professional career in karate in 1987 and holds the rank of 7th Dan from the Iran Karate Federation and 5th Dan from the World Karate Nomichi Federation (KWF), chaired by Sensei Mikio Yahara.

Abdeyazdan has served as an international referee with the World Karate Federation (WKF) and the Asian Karate Federation (AKF), officiating at Asian and World Championships as well as the Karate1 Premier League series, where he has been recognized as a prominent and internationally known referee.

In sports administration, he has held positions as Chairman and Vice Chairman of Referees Committees within the Karate Associations of Tehran and Isfahan provinces. He has also served as Head of Representations and Chairman of the International Relations Committee of the World Shotokan Organization in Iran and Tehran Province, headquartered in the capital city. He currently acts as the official representative of the World Karate Nomichi Federation (KWF) in Iran, leading and overseeing the organization’s activities in the country.

Abdeyazdan’s competitive record includes numerous national and international titles in kumite and kata between 1992 and 2006. Notable achievements include winning the Shotokan Kumite Selection Championship in Japan (2006) and qualifying through selection tournaments for the World Championships in Malaysia (2001).