Maba Diakhou Bâ (1809 – July 1867), also known as Ma Ba Diakhu, Ma Ba Diakho Ba, Ma Ba Jaaxu, Mabba Jaxu Ba, was a Muslim leader in West Africa during the 19th century. Born in Rip, Maba was a disciple of the Tijaniyya Sufi brotherhood and became the Almami of Saloum. Maba Diakhou Bâ founded the city of Nioro in Rip. The village of near Kaolack is named for him.