Dmytro Anatoliiovych Yarosh is a Ukrainian activist, politician, nationalist and military commander who is the main commander of the Ukrainian Volunteer Army. From 2013 to 2015, he led the Right Sector nationalist organisation, and formerly the Right Sector's Ukrainian Volunteer Corps. In late 2015, he withdrew from the Right Sector. From 2014 until 2019, Yarosh served as a People's Deputy of Ukraine. In February 2016, he started a new organisation called Governmental Initiative of Yarosh (DIYA).

The Ukrainian Volunteer Army is a volunteer military formation established in December 2015 by Dmytro Yarosh after his departure from Right Sector. On October 14, 2018, Yarosh announced that all combat units were leaving the front line and the main focus of the Volunteer Army would be the construction of territorial defense units.