Constant Tonegaru (common rendition of Constantin Tonegaru; February 26, 1919 – February 10, 1952) was a Romanian avant-garde and Decadent poet, who ended his career as a political prisoner and victim of the communist regime. Known for his bohemianism, he was the author of celebrated escapist and individualist poems, characteristic for the World War II generation in Romanian literature, and closely related to the works of his friends Geo Dumitrescu, Dimitrie Stelaru, and Ion Caraion. Together with them, Tonegaru stands for one of the last waves to pass through Sburătorul, a modernist literary society formed around literary critic Eugen Lovinescu.