Nathan D. Bryant (November 28, 1869 – January 25, 1949) was an American educator and politician.
He taught school for a seven-year period with an interruption to attend Hayward College in Fairfield, Illinois.
He ran for Gallatin County Superintendent of Schools as the nominee of the Populist Party, but lost.
During his time in the General Assembly, he was a member of the Farmers' Mutual Benefit Association.
At the time of his death, he was the head of agriculture education at Lindsey Wilson College.