Karen Nun Ira
- Born:23 May 1991 (29 years)
Japanese Karen Nun-Ira was born in Ghana. She came to Japan and reached world level. She was in the World Championships final U70kg in 2014. She won medals at Asian Championships and won a few World Cups. She won the All Japan Championships in 2013 and 2014 and Kodokan Cup in 2013.