Moses Hazen (June 1, 1733 – February 5, 1803) is a Brigadier General in the Continental Army during the American Revolutionary War.

Born in the Province of Massachusetts Bay, he sees action in the French and Indian War with Rogers' Rangers.

His service includes particularly brutal raids, during the Expulsion of the Acadians and the 1759 Siege of Quebec.

He is formally commissioned into the British Army, shortly before the war ends, and retires on half-pay outside Montreal, Canada, where he and Gabriel Christie, another British officer, make extensive land purchases in partnership.

During his lifetime he acquires land in Quebec, New Hampshire, Vermont, and New York, but loses most of his Quebec land due to litigation, with Christie and the negative effects of the Revolution.

In 1775 he becomes involved in the American invasion of Quebec early in the American Revolutionary War, and serves with the Continental Army, in the 1775 Battle of Quebec.

He goes on to lead his own regiment, (the 2nd Canadian, also known as "Congress' Own") throughout the war, seeing action in the 1777 Philadelphia campaign and at Yorktown in 1781.

He is frequently involved in litigation, both military and civil, and constantly petitions Congress for compensation of losses and expenses incurred due to the war.

He supports similar efforts by men from his regiment who are unable to return to Quebec because of their support for the American war effort.