Mohammad Kasbi (Persian: محمد کاسبی) was born on 4 Khordad 1330 (June 25, 1951) in Abshar Alley, Rey Street, Tehran, during a period when Iranian society was undergoing rapid modernization under the Pahlavi regime. He grew up in the working-class neighborhood of Naziabad, an area known for its vibrant local culture and the coexistence of traditional and modern lifestyles. The social environment of post-war Tehran, marked by urban migration and the rise of youth movements, had a lasting influence on Kasbi’s artistic sensibilities.
Kasbi completed his elementary and secondary education at Razi Elementary School, Elahi, Fateh, and Rastakhiz High Schools. He received his diploma in 1350 (1971–72). From a young age, he showed an interest in the arts, literature, and performance, gravitating toward theater as a medium of expression and social commentary. His passion for the performing arts contrasted with the expectations of many middle-class Iranian families at the time, who valued professions such as medicine or engineering. Despite being accepted into medical school, Kasbi soon abandoned that path to pursue theater — a decision that reflected both his artistic calling and his resistance to conventional expectations.