The 2nd Connecticut Regiment was authorized in the Continental Army on 16 September 1776. It was organized between 1 January - April 1777 at Danbury, Connecticut of eight companies from the counties of Fairfield, Windham, and Hartford in the state of Connecticut and assigned on 3 April 1777 to the 1st Connecticut Brigade of the Highlands Department. The regiment was re-assigned to McDougall's Brigade on 12 June 1777; then three days later (15 June 1777 it was re-assigned to the 2nd Connecticut Brigade. One month later, 10 July 1777 the regiment was re-assigned to 1st Connecticut Brigade. On 13 November 1777 the regiment was re-assigned to the 2nd Connecticut Brigade of the Main Continental Army. On 1 May 1779 the 2nd Connecticut Brigade was re-assigned to the Highlands department and the regiment was re-organized to nine companies on 11 July 1779. The regiment was re-assigned to the Main Continental Army on 16 November 1779. It was re-assigned to the Highland's department on 27 November 1780. On 1 January 1781 the regiment was merged with 9th Connecticut Regiment, re-organized and re-designated as the 3rd Connecticut Regiment of the 1st Connecticut Brigade. The regiment would see action in the New York Campaign, Battle of Brandywine, Battle of Germantown and the Battle of Monmouth. The regiment was furloughed 15 June 1783 at West Point, New York and disbanded on 15 November 1783.