Wang Ming-wan (simplified Chinese: 王铭琬; traditional Chinese: 王銘琬; pinyin: Wáng Míngwǎn; born November 22, 1961), also known as O Meien, is a professional Go player.

Wang was born in Tainan, Taiwan.

He is known for his quick fuseki and fighting ability.

He became a pro in 1977, two years after moving to Japan.

This biographical article relating to a Go figure from the Republic of China is a stub.