Okay Arpa (born July 15, 1977 in Kayseri, Turkey) is a Turkish karateka competing in the kumite +84 kg division.

He is a teacher of physical education serving at a primary school in Üsküdar, Istanbul.

2011
Gold 9th European Karate Regions Championships - June 4, Ankara TUR - kumite team
2010
Silver 8th European Karate Regions Championships - May 29, Warsaw POL - kumite team Gold 45th European Championships - May 7, Athens GRE - kumite team2009
Silver 7th European Karate Regions Championships - May 30, Madrid ESP - kumite team Bronze 44th European Championships - May 8, Zagreb CRO - kumite +84 kg
2008 Gold 19th World Championships - November 13, Tokyo JAP - kumite team Bronze 44th European Championships - May 2, Tallinn EST - kumite +80 kg2006 Gold 41st European Championships - May 5, Zagreb CRO - kumite team2004 Silver 39th European Championships - May 7, Moscow RUS - kumite open Bronze 39th European Championships - May 7, Moscow RUS - kumite team2001 Bronze 14th Mediterranean Games - September 9, Tunis TUN - kumite open2000 Silver 35th European Championships - May 5, Istanbul TUR - kumite +80 kg1998 Bronze 33rd European Championships - May 5, Belgrade SRB - kumite +80 kg