Andrzej Oleś was a Polish painter.

In 1907, he graduated from the Saint Anne Gymnasium in Krakow and began studying at the Academy of Fine Arts, where he studied for a year in the studio of Leon Wyczółkowski, and then under Stanisław Dębicki. At the same time, he studied law and administration at the Jagiellonian University.

He completed his law studies in 1913, obtaining a doctorate. Until 1916, he was a drawing teacher at the Saint Jack High School. In 1915, after a two-year break, he continued his painting studies with Wojciech Weiss; his paintings from this period were awarded at the annual exhibition, where he received a bronze medal.

After completing his studies in 1917, he traveled to Italy, and in later years he traveled to Vienna and Hungary. In 1932, he became a member of the Zwornik artistic group and the Society of Graphic Artists, and also belonged to the Krakow Society of Friends of Fine Arts, the Association of Polish Artists and Designers, and the Society of Friends of Krakow's Past.

In 1936, Andrzej Oleś settled in Kielce, where he was appointed provincial art conservator and head of the art department at the provincial office. During World War II, he gave private drawing lessons, and in 1944 he lectured on art history at the underground university in Kielce. After 1945, he initiated the establishment of a branch of the Polish Artists' Union in Kielce, of which he became president.

In 1946, he taught drawing on courses organized by the School of Arts and Crafts, and from 1948 he was the supervisor of the painting department, which was organized at the Świętokrzyskie Museum. He chaired the art section of the Commission for the Study of Art Historians in Kielce, in whose work he participated.