petro bolbochan (october 5, 1883, yarivka village, chernivtsi oblast - june 28, 1919, balyn village, khmelnytskyi oblast) is ukrainian military figure, colonel of the army of the ukrainian people's republic. from november 1918 to january 1919, bolbochan was the defense of northeastern ukraine. during the first world war he was an officer of the 38th tobolsk regiment.