Dumaresq may refer to:
Locations Armidale Dumaresq Shire, a former local government area in north-eastern New South Wales Dumaresq, New South Wales, an old stop on a New South Wales railway line Dumaresq Creek, running through Armidale in Armidale Dumaresq Shire Dumaresq Lake, a lake in Nova Scotia, Canada Dumaresq River, an Australian river that forms part of the border between New South Wales and Queensland
People Dumaresq (surname)
Technology Dumaresq, an analogue computer designed in 1902 to assist in warship gunnery