Frank George Farrington (September 11, 1872 - September 3, 1933) was an American lawyer and politician from Maine. Farrington, a Republican from Augusta, severed four terms in the Maine Legislature, including two in the Maine House of Representatives and two in the Maine Senate.
Farrington was first elected to the House in 1916, and was re-elected in 1918. During his second term, he was chosen Speaker of the Maine House of Representatives. In 1920, he successfully sought a seat in the Senate. However, on January 31, 1921, Governor Parkhurst died and was replaced by Senate President Percival P. Baxter. Farrington was then elected Senate President pro tempore. Re-elected in 1922, he was re-elected Senate President under Governor Baxter.
Farrington was active in Augusta affairs after leaving public office in 1924. He sought to build a YMCA in the city and was a trustee of the Lithgow Public Library He died on September 3, 1933, eight days before his 61st birthday.
Farrington was a graduate of Bowdoin College (1894) and Harvard Law School.