Ottoman labour battalions (, , Greek: Τάγματα Εργασίας, "Tagmata Ergasias", but more often the transliterated Turkish name αμελέ ταμπουρού is used) was a form of unfree labour in the late Ottoman Empire. The term is associated with disarmament and murder of Ottoman Armenian soldiers during World War I, of Ottoman Greeks during the Greek genocide in the Ottoman Empire and also during the Turkish War of Independence.