Sirivanh Ketavong (born September 1, 1970) is a Laotian athlete.
Described as "the best female distance runner in Laos", one of the world's poorest countries with few training facilities, Ketavong competed in the marathon at the 1996 Summer Olympics in Atlanta and at the 2000 Summer Olympics in Sydney. She completed the race on both occasions, but finished last but one in Atlanta, with a time of 3:25:16, and last in Sydney, with a time of 3:34:27. Ketavong completed the Sydney marathon "to a standing ovation from some fans".