George Carter Barrett (July 28, 1838 – June 7, 1906) was an Irish-American lawyer and judge from New York.

[1] In 1847, after his mother's death, Barrett moved to Canada with his father, who was assigned a missionary among the Muncey, and they settled in the Thames River.

He then went to Columbia College,[2] but left to study law in the office of Van Cott, Cady & Smales.

[5] Barrett was president of the Young Men's Municipal Reform Association while they were fighting the Tweed Ring.

He was a member of the Committee of Seventy and, together with A. R. Lawrence, Francis C. Barlow, and Wheeler H. Peckham, was its counsel.

[7] In 1900, although Governor Roosevelt reappointed him to serve an additional five years in the Appellate Division, he asked to be transferred back to the Supreme Court.