Tillinghast may refer to:
*
Tillinghast (surname), an English surname
*
Tillinghast L'Hommedieu Huston (1867–1938), American businessman, owner of New York Yankees, circa 1915
*
Tillinghast Mill Site, a Registered Historic Place in Rhode Island, United States
*
Tillinghast Road Historic District, a Registered Historic Place in Rhode Island, United States
*
Tillinghast Licht, a now defunct law firm in Rhode Island, United States
* Tillinghast, Nelson & Warren Inc., an American company that is now a part of
Willis Towers Watson
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