Tadeusz Czeżowski (July 26, 1889 – March 28, 1981) was a Polish philosopher and logician.

[2][3] He was the son of a high-ranking state official a previous Prefect who later became the Counsellor of the Governorate of Galicia.

[1][3] His mother, Helena Kusche, was considered part of the petite bourgeoisie of the city.

[3] He became a student of Kazimierz Twardowski, who conferred to Czeżowski his doctorate in philosophy in 1914 after completing his dissertation entitled, Teoria klas (Theory of Classes).

After qualifying as mathematics and physics teacher, he started teaching in a Lviv grammar school in 1912.