Grassy Hill Light, also known as Cooktown Light, is an active lighthouse located on Grassy Hill above Cooktown, Queensland, Australia, on the south side of the entrance to Endeavour River.

Cooktown is a coastal town and locality in the Shire of Cook, Queensland, Australia. Cooktown is at the mouth of the Endeavour River, on Cape York Peninsula in Far North Queensland where James Cook beached his ship, the Endeavour, for repairs in 1770. Both the town and Mount Cook which rises up behind the town were named after James Cook.