John Davenport (January 16, 1752 – November 28, 1830) was a United States representative from Connecticut.

Born in Stamford in the Connecticut Colony, he pursued academic studies, and graduated from Yale College in 1770.

He was a member of the Connecticut House of Representatives from 1776 to 1796, and served in the commissary department of the Continental Army during the Revolutionary War, attaining the rank of major in 1777.

He declined to be a candidate for reelection in 1816 and died in Stamford in 1830; interment was in North Field (now Franklin Street) Cemetery.

James Davenport, John's brother, also represented Connecticut in the House as a Federalist.