The Battle of Mucojo was a military engagement between unidentified Anti-Islamist militants, Islamic State affiliates, and the Mozambique Defence Armed Forces in the coastal town of Mucojo during the Insurgency in Cabo Delgado. It started on 22 April 2021 when anti-Islamist militants took control of Mucojo and nearby villages including Lumumua. The militants started a killing spree near Mucojo after the Mozambique Army retook many villages near Mucojo.