Clement Garnett Morgan (1859-1929) was an American attorney, civil rights activist, and city official of Cambridge, Massachusetts. Born into slavery in Virginia and freed by the Emancipation Proclamation, he trained as a barber before moving to Massachusetts to pursue his education. He was the first African American to earn degrees from both Harvard University and its law school; the first African American to deliver Harvard's senior class oration; and the first black alderman in New England. As an attorney he handled many civil rights cases, in one instance closing down a segregated school. He was a founding member of the Niagara Movement and of the Boston branch of the National Association for the Advancement of Colored People.