Anastas (Atanas) Dimev Lozanchev (Bulgarian and Macedonian: Анастас Димев Лозанчев, romanized: Anastas Dimev Lozančev; 8 April 1870 – 8 November 1945) was a Macedonian Bulgarian teacher, revolutionary and a member of the Internal Macedonian Revolutionary Organization (IMRO). He was a member of the Bitola regional committee and General Staff for the Ilinden Uprising.