Royal Consort Su of the Andong Kwà Ân clan (; died 29 April 1340) was the fifth wife of King Chungsuk of Goryeo.
The future Royal Consort Su was born into the Andong Kwà Ân clan as the eldest daughter and second child of Kwà Ân Ryà Âm, Prince Hyeonbok () and his wife who was from the Pyongyang Jo clan. King Chunghye's third wife, Lady Hong was once Lady Kwà Ân's cousin.
Her paternal great-grandfather was Kwà Ân Po, Internal Prince Yeongga () and her paternal grandfather was Kwà Ân Chun, Internal Prince Gilchang () who kept his loyalty to King Chungsuk when other servants loyal on Wang Ko. From Kwà Ân Chun's succession, the Andong Kwà Ân clan became a prestigious family and had a lot of wealth. His manor was said to admired by the king when he visited.
Lady Kwà Ân was firstly marry to Jeon-Sin ()'s son, but her father tried to divorced them due to the quality of the Chà Ân family clan (). Then, in 1335 (4th years reign of King Chungsuk), the couple finally divorced under the pretext of an order from the king and Lady Kwà Ân was honoured the Consort Su () upon becoming the king's new consort.
In 1339, after King Chungsuk's death, Lady Kwà Ân and his other wifeâÂÂPrincess Gyeonghwa was raped by his son and successor, King Chunghye.
Lady Kwà Ân died childless on 29 April 1340, and her father, Kwà Ân Ryà Âm also died in the same year at 39 years old, so it was believed that she died at a young age (mid 20s) possibly by suicide after the shock of being raped.