Mountaintop Motel Massacre is a 1983 American psychological slasher film written and directed by Jim McCullough Sr. and starring Anna Chappell, Bill Thurman, and Amy Hill. The plot concerns a psychotic elderly woman who, after being freed from incarceration, returns to the motel she ran and begins murdering the guests.

Filmed in 1982 in Shreveport, Louisiana, the film was first independently released in the southern United States under the title Mountaintop Motel. In 1985, New World Pictures acquired theatrical distribution rights, and its ending was reshot to feature additional onscreen gore. New World Pictures released the film theatrically as Mountaintop Motel Massacre in March 1986. Although the film received negative critical reception upon its theatrical release, it has, in later years, been noted for its offbeat atmosphere, and has been referred to as an "early 1980s drive-in gem."