Judah Mordechai Cohen (1768 – 8 September 1838) was a Dutch-born London-based Jewish merchant and slave plantation owner with interests in Jamaica. With over 1255 slaves on his plantations, Cohen was one of the most extensive slave owners in Jamaica and the British West Indies in general at the time of the Slavery Abolition Act 1833. He had been involved in trade in the West Indies as a partner of his older brother Hymen Cohen since 1804.