Marissa Stander Van der Merwe (born 30 August 1978 in Pretoria) is a retired South African professional road cyclist. She has awarded two South African championship titles each in both road race and time trial, and later represented her nation South Africa at the 2008 Summer Olympics. Marissa also raced for the nation's MTN Cycling team before her official retirement in 2011. Marissa made her official debut at the 2007 All-Africa Games in Algiers, Algeria, where she won the silver medal in the women's road race with a final time of 2:00:54, finishing behind her teammate Yolandi du Toit.