Joseph Platt Cooke (January 4, 1730 – February 3, 1816) was an American military officer in the Revolutionary War, a Connecticut politician, and twice a delegate to the Congress of the Confederation.

His grandfather Joseph Platt, also served in the Connecticut House of Representatives for many years.

[1] In 1771, he was appointed colonel of the Sixteenth Regiment of the Connecticut militia, and during the Revolutionary War he accompanied General Wolcott's forces to New York in 1776.

[2] Before, during, and after the Revolutionary War, Cooke played an active role in the political and judicial aspects of local government.

He settled in Danbury and from 1763 to 1783 represented the town in about thirty sessions of the general assembly.