Mary Antona Ebo, FSM, (born Elizabeth Louise "Betty Lou" Ebo; April 10, 1924 – November 11, 2017) was an American nun, hospital administrator, and civil rights activist. She was the first African-American woman to head a Catholic hospital, and is known for marching with Martin Luther King Jr. in Selma in 1965, famously saying "I'm here because I'm a Negro, a nun, a Catholic, and because I want to bear witness."