Nathaniel Terry Jr. was an American politician, lawyer, and judge who served a single term in the United States House of Representatives, representing the at-large congressional district of Connecticut from 1817 to 1819 as a member of the Federalist Party. He previously served in the Connecticut House of Representatives from 1804 to 1815, and subsequently served as the fourth mayor of Hartford, Connecticut from 1824 to 1831.

During the first twenty-four Congresses, Connecticut elected all its representatives in Congress from a single multi-member Connecticut at-large congressional district.