Jan Kanty Ignacy Maszkowski was a Polish painter; known for portraits, history and genre paintings.

He displayed artistic skills from an early age. A local landowner named Jozef Levitzky took note and helped him enroll in the School of Drawing at the University of Lviv, where he studied from 1813 to 1818, under the pastellist, Józef Buisset (1776-1832). He then spent three years at the Academy of Fine Arts in Vienna. His primary instructors there were Heinrich Füger and Johann Baptist von Lampi.

This was followed by studies in Rome, at the Accademia di San Luca, While there, he also visited Naples, Florence and Venice. In 1824 his patron, Levitzky, demanded that he return home, which he did, after a brief stay in Vienna. Once there, he focused on painting portraits and genre scenes in Volhynia and Podolia, and had his own workshop in Dubno.

From 1834 to 1843, he taught drawing at his alma mater, the university. When they closed the drawing school, he established his own school of painting at his workshop in Lviv. His pupils included Artur Grottger, Juliusz Kossak, Feliks Jan Szczęsny Morawski, Aleksander Raczyński, Henryk Rodakowski, Stanisław Tarnowski, Franciszek Tepa, and his son Marceli Maszkowski [pl].

He died at his home in Barszczowice, a few days after his seventy-first birthday.