David Finlay Jelly (September 28, 1847 – December 27, 1911)[1][2] was an educator, farmer and political figure in the Northwest Territories, Canada.

He represented Regina from 1885 to 1888 in the 1st Council of the Northwest Territories and North Regina from 1888 to 1894 in the Legislative Assembly of the Northwest Territories as an Independent member.

He was born in North Dorchester Township, Middlesex County, Canada West, the son of William Jelly and his wife Mary (née Finlay).

He taught school for five years in Harrietsville and then served as managing director for the Belmont Flax Company.

It is unknown when he arrived in Brisbane, Queensland, but he was admitted to Dunwich Benevolent Asylum in September 1911.