Shigeji Tsuboi (壺井 繁治, Tsuboi Shigeji, October 18, 1897 – September 4, 1975) was an influential Japanese poet of the modern era of Japanese literature. He was cofounder (with ) of the Dadaist-Anarchist poetry journal Aka tokuro (Red and Black, 1923–24) and Bungei Kaiho (Literary liberation, 1927).