Dzhabrail Yamadayev (16 June 1970 - 5 March 2003) was a Chechen rebel field commander during the First Chechen War. He switched sides together with his brothers, Ruslan and Sulim in 1999 during the outbreak of the Second Chechen War and then became the commander of the Russian special forces unit Vostok. Yamadayev was assassinated by a bomb blast in March 2003.