Mykhailo Onatsko is a Ukrainian painter, Merited Master of Folk Art of Ukraine, member of the National Union of Folk Art Masters of Ukraine, and laureate of numerous art prizes.

Onatsko began painting in the late 1980s when he was 47 years old. He was a prominent representative of naive art — a style created by self-taught or amateur artists. He also actively built upon the traditions of Ukrainian folk painting.

His native land served as an inexhaustible source of inspiration for the artist. Broadly speaking, his canvases can be categorized into several recurring themes: winter gatherings (vechornytsi), caroling, springtime ritual songs (haivky), Easter, Kupala Night, weddings, chumak (salt-trader) journeys, as well as Cossack and Gogol-inspired stories.

Most famous paintings: "My Village" (1990), "Sunday" (1991), and "And on the Other Side, Where Marichka Lives" (1992).