The Grand Lodge of Ancient Free & Accepted Masons of the State of Connecticut is the main governing body of Freemasonry in the U.S. state of Connecticut as recognized by the United Grand Lodge of England.

Freemasonry was first established in Connecticut from the city of New Haven in 1750.

[4] As in most Masonic jurisdictions, membership in a Masonic Lodge under the jurisdiction of the Grand Lodge of Connecticut is open to any male over 18 years of age who believes in a Supreme Being and is of sound moral character.

On October 14, 1989, the Grand Lodge of Connecticut became the first Mainstream Grand Lodge in the United States to formally recognize and maintain the recognition of Prince Hall Freemasonry.

Both Grand Lodges allow dual-membership rights for its members.