David Cohen (November 13, 1914 – October 3, 2005) was an American lawyer, Democratic civil servant and politician. For the last 26 years of his life, he was a Philadelphia city councilman representing the northwest district. Having served a four-year term not consecutive to the other terms, he represented northwest Philadelphia for a total of 29 years. He died in office aged 90. In 1995, Cohen declared himself "a Franklin D. Roosevelt Democrat", and thereafter refused any other public comment on supporting political alliances in the city.