Territorial defence battalions (Ukrainian: Батальйо́ни територіа́льної оборо́ни) were volunteer military units of the Armed Forces of Ukraine under the auspices of the Ukrainian Ministry of Defence in 2014–2015. They should not be confused with the volunteer units of Special Tasks Patrol Police of Ukraine which created along with territorial defense battalions, but under the auspices of the Ministry of Interior. The battalions were established in mid-2014, during the early stages of the War in Donbass, to combat the pro-Russian separatists and the forces of the Donetsk People's Republic, Luhansk People's Republic, and the United Armed Forces of Novorossiya. 32 volunteer territorial defence battalions have been formed.
In autumn 2014 most of the territorial defence battalions were reorganized as motorized infantry battlions of the Ukrainian Armed Forces.
In March 2014 acting President of Ukraine Oleksandr Turchynov issued an order to create seven territorial defence battalions. These formations were subordinated to the Ministry of Defense. Battalions generally took their name from wherever most of their recruits were from.
Since 30 April 2014 all territorial defence battalions have been part of the Armed Forces of Ukraine and fall under the General Staff of the Ukrainian Armed Forces and the governors of the oblasts (provinces) in which they were created. By law, every oblast in Ukraine should create its own territorial defence battalions.