Tadeusz Hollender was a Polish poet, translator and humorist. During World War II, he wrote satirical articles and poems in underground press, for that he was arrested by the German Gestapo and executed in May in the infamous prison, Pawiak.

Tadeusz Ludwik Hołówko, codename Kirgiz, was an interwar Polish politician, diplomat and author of many articles and books.

Tadeusz Hołuj was a Polish poet, writer, publicist and politician.

Tadeusz Konwicki was a Polish writer and film director, as well as a member of the Polish Language Council.

Tadeusz Korzon (1839—1918) was a historian specializing in the history of Poland.

Tadeusz Marian Kotarbiński was a Polish philosopher, logician and ethicist.

Tadeusz Łopalewski was a Polish poet, prose writer, dramatist and translator of Russian literature and producer of many radio programs.

Tadeusz Miciński was an influential Polish poet, gnostic and playwright, and was a forerunner of Expressionism and Surrealism. He is one of the writers of the Young Poland period. His writings are strong influenced by Dark Romanticism and Romantic gothic fiction, with a focus on moral battles between good and evil. He was called by many a wizard poet and a worshipper of mysteries.

Tadeusz Peiper was a Polish poet, art critic, theoretician of literature and one of the precursors of the avant-garde movement in Polish poetry. Born to a Jewish family, Peiper converted to Catholicism as a young man and spent several years in Spain. He was a co-founder of the Awangarda krakowska group of writers.

Tadeusz Rittner was a Polish dramatist, prose writer, and literary critic.