Myron Omelianovych Tarnavsky (Ukrainian: Мирон Омелянович Тарнавський; August 29, 1869 – June 29, 1938) was a supreme commander of the Ukrainian Galician Army, the military of the West Ukrainian People's Republic. In 1919 he signed a controversial armistice with the Volunteer Army, which resulted in his removal from command and eventual acquittal by a military tribunal.