Marieke van den Ham (born 21 January 1983 in Wierden, Overijssel) is a water polo player of the Netherlands who represents the Dutch national team in international competitions.
Van den Ham was part of the team that became 10th at the 2005 World Aquatics Championships in Montreal. At the 2006 FINA Women's Water Polo World League in Cosenza and the 2006 Women's European Water Polo Championship in Belgrade they finished in fifth place. She was not selected for the 2007 World Aquatics Championships in Melbourne, but returned for the Dutch team that finished in fifth place at the 2008 Women's European Water Polo Championship in Málaga and they qualified for the 2008 Summer Olympics in Beijing. There they ended up winning the gold medal on 21 August, beating the United States 9-8 in the final.