Sayo Masuda (born 1925) is a Japanese author known for her autobiographical work 'Geisha, A Life'. Born into poverty, she became a geisha in her youth and later turned to writing to document the realities of the geisha world. Her works reveal the hardships and complexities of the geisha profession, offering a valuable perspective on Japanese culture. Masuda's writing is candid and nuanced, highlighting women's struggles and resilience in traditional society.