Daniel Westermark (born 6 April 1963) is a Swedish professional golfer. Westermark enjoyed success on the Challenge Tour in the early 1990s where he won the 1993 Campeonato de Castilla and the 1994 Centenario Copa Palmer. He also finished runner-up in the 1991 Neuchatel Open, 1993 Kenya Open, 1994 Neuchatel Open, 1994 Tessali Open, 1994 El Corte Ingles Open, 1996 Is Molas Challenge and the 1998 Volvo Finnish Open.