Kim Kyemyà Âng () was a member of the royal family of Silla. He was the son of King Huigang and the father of King Gyeongmun.
Kim Kyemyà Âng was the son of King Huigang and his wife, Queen Munmok, the sister of King Minae. He married Lady Ganghwa, the daughter of King Sinmu. His sons were King Gyeongmun and Kim Wi-hong. In 838, his father was murdered by Kim's maternal uncle, Kim Myà Âng, who became the next king, King Minae.
By 848, Kim was of the panjinch'an rank. He succeeded Kim Yang as the director of the Chancellery (). Kim Kyemyà Âng was thought to have served as the director until his son, King Gyeongmun became king. Kim is thought to have died sometime before 866, as in 866 he was posthumously honoured as King Uigong () by his son.