The 1986 NCAA Division I Women's Tennis Championships were the fifth annual championships to determine the national champions of NCAA Division I women's singles, doubles, and team collegiate tennis in the United States. The women's team championship was won by Stanford, their second title in three years. This was the first time that the men's and women's team from the same school won championships in the same year. The Cardinal defeated rivals USC in the final round, 5–4. The women's singles title was won by Patty Fendick from Stanford.