Fernando Wood (14 June 1812 – 14 February, 1881) was an American politician of the Democratic Party from Pennsylvania. He served as the Mayor of New York City twice (1855 – 1857, 1860 – 1862), United States Representative three times (1841–1843, 1863–1865, and 1867–1881) and as Chairman of the Committee on Ways and Means in both the 45th and 46th United States Congress (1877–1881). He was head of the political machine Tammany Hall. In 1854 he was elected Mayor of New York City and took office in 1855. He ran again in 1856, but lost to Daniel F. Tiemann, who was mayor from 1857 to 1859. Wood was re-elected in 1860 and took office again that year, for the last time. After being a mayor, Wood returned to the United States Congress. He died at the age of 68.