Preston Tower is a ruined L-plan keep in the ancient Scottish village of Prestonpans. It is situated within a few metres of two other historic houses, Hamilton House and Northfield House.

Prestonpans is a small mining town, situated approximately eight miles east of Edinburgh, Scotland, in the council area of East Lothian. The population as of 2020 is 10,460. It is near the site of the 1745 Battle of Prestonpans. Prestonpans is "Scotland's Mural Town", with many murals depicting local history.