Mary Elizabeth Bibb (1820–1877) was an American-born educator and abolitionist leader. She is considered by some to be the first woman Black journalist in Canada.
Mary Bibb was born free in Rhode Island, and attended Massachusetts State Normal School to train to be a teacher. She was active in the abolitionist movement and met Henry Bibb at an abolitionist event in 1847. Together, they moved to Sandwich and started the Voice of the Fugitive newspaper and ran the Refugee Home Society. Mary Bibb continued to be an active educator in Canada West and later operated a retail store.
Mary Bibb was not officially recorded to be at the North American Convention of Colored Freemen; however, it is highly likely she was in attendance and was involved in the Convention’s planning.