Mahadevshastri Joshi (January 12, 1906 - December 12, 1992) was a Marathi writer.
Joshi was born on January 12, 1906, in the town of Ambede in Goa. He received the epithets shastri and pandit following his education in a Sanskrit pathshala (पाठशाळा) in Sangli.
In his student days, Joshi also frequented the public library in Sangli, and widely read the works of modern Marathi writers of his time like Narayan Sitaram Phadke and Vishnu Sakharam Khandekar. Especially, Khandekar's short stories and novels highly influenced him then to want to be a writer like Khandekar.