Oleh Ivanitsa was born on 26 April 1978 in the town of Khmilnyk, Vinnytsia region. He graduated from the Institute of International Business at the Ternopil Academy of National Economy. He also graduated from the Black Square acting studio. He is unmarried. He has two children: Olya - 17 years old and Ostap - 9 years old. Oleg is a water sports enthusiast.
From 2015 to 2018, he was an actor in the Diesel Show, a programme by Diesel Studio, and its subsidiary project, the sketch comedy show For Three.
In 2018, he left the programme, explaining that he had lost motivation due to the death of Marina Poplavskaya, one of the main actresses of the show.