Ann Morgan Williams (died December 13, 1985)was an American television, soap opera and Broadway actress.

A native of Washington, D.C., Williams' notable soap roles included stints on The Doctors as the first Dr. Maggie Fielding and on The Edge of Night as television station owner, Margo Huntington Dorn.

Her most memorable role, however, for which she is best-remembered, was as Eunice Gardner Wyatt#2, on Search for Tomorrow (1966–1976). Her last soap role was as alcoholic June Slater on Loving, a role that, for a short time, reunited Williams and her former Search for Tomorrow co-star, John Cunningham.

She appeared on the Broadway stage in The Milk Train Doesn't Stop Here Anymore (1963) by Tennessee Williams and the musical Applause (1970).