George F. Monahan (January 20, 1867 – May 7, 1929) was an American politician who served in the Massachusetts Senate.

[1] He attended St. Mary's School for many years before leaving to work in a cigar factory.

During his first campaign for state senate, he provided $35,000 in bail for 12 men accused of illegal naturalization as well as actor Eben Plympton.

[1][2] In 1905, Monahan narrowly lost the Democratic nomination for the 2nd Suffolk seat in the Massachusetts Senate to incumbent James J.

[8] In 1922, Monahan was a candidate for the United States House of Representatives seat in Massachusetts's 10th congressional district, but withdrew.