Richard Siward (died 1311), Lord of Kellie, was a 13th-14th century Scottish noble.

He was the son of the English adventurer Richard Siward and his wife, the wealthy heiress and widow Philippa Basset countess of Warwick, who had married in 1230.

His parents divorced in 1242 and young Richard remained in the custody of his father by the terms of the settlement.

Richard was captured at the Battle of Dunbar on 27 April 1296 and held prisoner in the Tower of London until he was released in August 1297.

After Robert the Bruce killed John Comyn, he captured several English-held castles including Tibbers.