John Allen (June 12, 1763 – July 31, 1812) was an eighteenth-century lawyer and politician.

Allen was born in Great Barrington in the Province of Massachusetts Bay.

[1] Allen was admitted to the bar in 1786 and began the practice of law in Litchfield, Connecticut.

Allen married Ursula McCurdy, a graduate of the Litchfield Female Academy.

[10][11] Allen's sister, Annie Willard Allen Goodrich, was married to Elizur Goodrich, a U.S. Representative from Connecticut, serving from March 4, 1799, to March 3, 1801, and brother of U.S.