Tadeusz Garbowski (15 June 1869 – 9 January 1940) was a Polish zoologist and philosopher who served as a professor at the Jagiellonian University. He was interested in the philosophy of science and ethology. He also wrote books including poetry under the pseudonym Leon Płoszowski. He was arrested and sent by the Nazi authorities to the Sachsenhausen concentration camp in 1939 and died there shortly after.