The 1986 NCAA Division I Cross Country Championships were the 48th annual NCAA Men's Division I Cross Country Championship and the 6th annual NCAA Women's Division I Cross Country Championship to determine the team and individual national champions of NCAA Division I men's and women's collegiate cross country running in the United States.
In all, four different titles were contested: men's and women's individual and team championships.
Held on November 24, 1986, the combined meet was hosted by the University of Arizona at the Canada Hills County Club in Tucson, Arizona.
The individual championship was won by Aaron Ramirez, from Arizona, with a time of 30:27.53.
The individual championship was won by Angela Chalmers, from Northern Arizona, with a time of 16:55.49.