Gaselee is a surname. Notable people with the surname include:
Alfred Gaselee (1844–1918), British Indian Army general Gaselee Expedition, 1900 expedition, part of the war of the Boxer Rebellion Stephen Gaselee (diplomat) (1882–1943), British diplomat, writer, and librarian Stephen Gaselee (judge) (1762–1839), British judge Stephen Gaselee (serjeant-at-law) (1807–1883), British serjeant-at-law and politician