Toshio (利夫, としお, トシオ) is a common masculine Japanese given name.
Toshio can be written using different kanji characters and can mean:
敏夫, "agile, man"
敏男, "agile, man"
敏雄, "agile, hero"
俊夫, "sagacious, man"
俊雄, "sagacious, hero"
利生, "advantage, life"
登志男, "ascend, intention, man"
The name can also be written in hiragana or katakana.
Tosanoumi Toshio (敏生, born 1972), Japanese sumo wrestler
Toshio Furukawa (登志夫, born 1946), Japanese voice actor
Toshio Gotō (俊夫, born 1938), Japanese film director
Toshio Iwai (俊雄, born 1962), Japanese interactive media and installation artist
Toshio Kakei (利夫, born 1962), Japanese actor
Toshio Kimura (1909 – 1983), Japanese politician
Toshio Masuda (利雄, born 1927), Japanese film director
Toshio Matsumoto (俊夫, born 1932), Japanese film director and video artist
Toshio Nakanishi, a Japanese musician and an artist
Tosiwo Nakayama (利雄, 1931-2003), first president of the Federated States of Micronesia
Toshio Shibata (敏雄, born 1949), Japanese photographer
Toshio Shimao (敏雄, 1917–1986), Japanese novelist
Toshio Suzuki (driver) (利男, born 1955), Japanese racing driver
Toshio Suzuki (producer) (敏夫, born 1948), chief producer of the Japanese animation studio Studio Ghibli
Toshio Yamane (敏郎, born 1953), Japanese photographer
Toshio Ozaki, a protagonist in the horror novel/manga/anime series Shiki.
Toshio Saeki (Ju-on) (俊雄), a main antagonist in the Japanese horror series Ju-on
Toshio Utsumi (俊夫), a character in the anime and manga series Cat's Eye