Roosevelt Johnson was a Liberian who led a rebel group during the country's civil war. He is a member of the Krahn ethnic group.
A former teacher, Johnson joined the rebel group United Liberation Movement of Liberia for Democracy (ULIMO) soon after the war began. ULIMO split into two factions in 1994: United Liberation Movement of Liberia for Democracy-Kromah faction (ULIMO-K) led by Alhaji G.V. Kromah and the United Liberation Movement of Liberia for Democracy-Johnson faction (ULIMO-J), which was led by Johnson.
Fighters loyal to Johnson triggered the first major violation of the Abuja Accord in December 1995, resisting ECOMOG deployment around the diamond mines near Tubmanburg. He was dismissed from the ULIMO-J leadership in early 1996.