Tadeusz Dołęga-Mostowicz (10 August 1898 – 20 September 1939) was a Polish writer, journalist and author of over a dozen popular novels. One of his best known works, which in Poland became a byword for fortuitous careerism, was The Career of Nicodemus Dyzma (Polish: Kariera Nikodema Dyzmy, 1932). His other novel, The Quack, has had three major film adaptations, the most recent of which was produced by Netflix in 2023.