The battle of Avdiivka was a major battle between the Russian and Ukrainian Armed Forces for control of Avdiivka, a city in Donetsk Oblast, during the Russian invasion of Ukraine. After more than a year and a half of intermittent fighting along the city's outskirts, Russian forces launched an offensive to capture Avdiivka on 10 October 2023, resulting in what was considered one of the bloodiest and fiercest battles of the war.

Avdiivka is a city in Donetsk Oblast, Ukraine. The city is located in the centre of the oblast, just north of the regional centre, Donetsk. The large Avdiivka Coke Plant is located in Avdiivka. The city had a population of 31,392 before the Russian invasion of Ukraine, but it was reported as 1,600 in October 2023, and then "just over 1,000", mostly living below ground level.