The 1985 NCAA Division I Tennis Championships were the 39th annual NCAA Division I Men's Tennis Championship and the 4th annual NCAA Division I Women's Tennis Championship to determine the national champions of NCAA Division I men's and women's collegiate tennis. Each championship featured a singles, doubles, and team championship.
The men's tournaments were played in Athens, Georgia, hosted by the University of Georgia, while the women's tournaments were held in Oklahoma City, Oklahoma, hosted by Oklahoma State University. The men's and women's tournaments would not be held at the same site until 2006.
The men's team championship was won by Georgia, their first team national title. The Bulldogs defeated defending national champion UCLA in the final round, 5–1. The men's singles title was retained by Mikael Pernfors from Georgia. Pernfors became the first person to win back-to-back single's titles since Dennis Ralston in 1963 and 1964. The men's doubles title was won by Kelly Jones and Carlos DiLaura from Pepperdine. It was also Jones' second consecutive double's title, the first player to do this since Mel Purcell and Rodney Harmon in 1980 and 1981.
The women's team championship was won by USC, their second title in three years. The Trojans defeated Miami (FL) in the final round, 6–3. The women's singles title was won by Linda Gates from Stanford. Gates, along with partner Leigh Ann Eldredge (both from Stanford), also won the women's double title, her second consecutive championship in the event. Gates became the first woman to win consecutive NCAA Division I double's titles as well as the first woman to win the single's and double's championship in the same year. This feat would not be accomplished again until Keri Phebus, from UCLA, won both titles in 1995.