Tadeusz Jerzy Gebethner (18 November 1897 – 14 October 1944) was a Polish soldier, insurgent, bookseller, and footballer.

From 1914 to 1925 he was an active player and captain of the Polonia Warsaw team; later he worked in his family bookstore and publishing business (Gebethner i Wolff [pl]).

A participant of the Warsaw Uprising, he was critically wounded and taken prisoner to Stalag-XIA, where he died from the same injuries on 14 October 1944.

[2] Gebethner paused his studies and sports career to join the 5th Zasław Ułan Regiment during the Polish–Soviet War and took part in fighting around Lwów (now Lviv, Ukraine) in 1920.

In 1921, together with the Polonia Warsaw team, Gebethner won the title of vice-champion of Poland in the 1921 Polish Football Championship.

[2] He ended his football career at the age of 28 and devoted himself to professional work in the family bookselling and publishing enterprise (Gebethner i Wolff).

His associates and friends included Zofia Nałkowska, Juliusz Żuławski, Kornel Makuszyński, Mira Zimińska-Sygietyńska, Jan Lechoń (a former classmate), and Władysław Reymont (a neighbour).

Gebethner escaped from the camp and moved to Wilno (now Vilnius, Lithuania), where he became involved in the Polish resistance (Union of Armed Struggle) and organised more escapes from the Rokiškis camp (following the Soviet occupation of the Baltic states, many of the Polish officers still there perished in the Katyn massacre).