Charles C. Marrin (October 9, 1868 – February 1, 1950) was an American lawyer, politician, and judge from New York.
He served in the Assembly in 1893 (when he submitted a bill to authorize the commissioner of the department of public improvements in the 23rd and 24th wards of New York to take summary proceedings to improve the sewers and drainage of those wards and a bill related to the Post-Graduate Hospital)[3] and 1894 (when he submitted a number of bills to amend the New York City charter, including bills to employ school trustees, provide additional school accommodations, continue street improvements in the 23rd and 24th wards, improve Pelham Park, and provide for a canal bridge at Mott Haven).
Following his time in the Assembly, he spent several years in the County Clerk's office and briefly served as executive secretary to Bronx Borough President Louis F. Haffen.
He was admitted to the bar in 1907, and shortly afterwards Mayor George B. McClellan Jr. appointed him Deputy Water Commissioner.
He unsuccessfully ran for the office as the Liberal Party candidate in 1934, after which he returned to private practice.