O Sonfa

, also known by her Korean name Oh Seon-hwa , is a former professor in the School of International Relations at Takushoku University in Tokyo. She is currently a professor of International Relations at Tokyo International University. She is also active as an author and journalist in Japan. She is a critic in many fields such as current issues, history, and culture, particularly in East Asian Countries.

Originally from Jeju Island, South Korea, she left for Japan in 1983. In 2007 and 2013, she was refused entry to South Korea.

She has since been a source of controversy in Korea due to her open criticism of not only the South Korean government, but Korean culture as a whole. After the 2014 sinking of MV Sewol disaster, she described Koreans as "having no patriotism and completely selfish", and argued that Japan should not try to reconcile its differences with South Korea.

Publications Getting Over It! Why Korea Needs to Stop Bashing Japan . Tachibana Publishing: 2015 What Makes Korea Insult Japan: Truth Behind Korea's Resentment Over Japan . Hikaruland Publishing Co. Ltd.: 2017