Kurt Tucholsky was born on January 9, 1890, into a well-off family belonging to Berlin's Jewish bourgeoisie. He is the eldest son of the Jewish banker Alex Tucholsky (1855-1905) and his wife Doris Tucholsky (1869-1943). He spent his early childhood in Szczecin, Poland. He also had a sister named Ellen, and a brother named Fritz.
Tucholsky had a strained relationship with his mother throughout his life and was really close with his father, who died as a result of syphilis when Kurt was only 15. Alex left a big fortune to his family, which helped all of his children to receive a good education.