Suhas Shirvalkar (Devnagari:सुहास शिरवळकर- सुशि ) (15 November 1948 – 11 July 2003) was a Marathi writer from Maharashtra, India. Shirvalkar wrote Social Novels, Detective Stories, Short Stories, One Act Play, Newspaper Columns, Poems etc.He authored more than 300 books including his well-known book "Duniyadari". Known for his detective-thrillers, he had also authored "Roopmati", a novel with a historical background, besides short stories, one-act plays.