Ommanandsing Kowlessur (born March 29, 1982) is a Mauritian athlete competing in the 200 and 400 metres. He placed fifth in the 400 metres at the 2005 Francophone Games, held in Niamey, Niger. In 2006, Kowlessur placed fourth in the 4 × 100 m relay at the Commonwealth Games in Melbourne, Australia.