Tihomir Lončar was born in Vinagora (1953). Having completed his elementary education, he began to study at the Painting Department of the Zagreb School of Applied Arts, where he graduated from in 1974. That same year he was admitted to the Zagreb Academy of Visual Arts, where he graduated from under Vasilije Jordan.
He had his first solo exhibition in 1985, and has had more than thirty one-man exhibitions since. Worth mentioning among them are his extensive monographic exhibition at the Zagreb Museum of Arts and Crafts in 1993, and the exhibition entitled The Three Seasons at the Zagreb Art Pavilion in 1999.
The Kontura Art Magazine published a Tihomir Lončar monograph authored by Stanko Špoljarić in 1995, and another Tihomir Lončar monograph by Nikola Albaneže in 2008.
He has published several portfolios of graphics, and has taken part in numerous group exhibitions at home and abroad.
Tihomir Lončar lives and works in Zagreb.