Toshiki (written: 俊樹, 俊貴, 敏樹, 敏生, 憲輝, 利規, 知己, 稔記, 登詩樹 or トシキ in katakana) is a masculine Japanese given name. Notable people with the name include:
Toshiki Chino (千野 俊樹) (born 1985), Japanese footballer
Chiyonokuni Toshiki (千代の国 憲輝) (born 1990), Japanese sumo wrestler
Toshiki Hirano (平野 俊貴) (born 1956), Japanese anime director
Toshiki Inoue (井上 敏樹) (born 1959), Japanese screenwriter
Toshiki Kadomatsu (角松 敏生) (born 1960), Japanese musician
Toshiki Kaifu (海部 俊樹) (born 1931), Japanese politician and Prime Minister of Japan
Toshiki Koike (小池 知己) (born 1974), Japanese footballer
Toshiki Okada (岡田 利規) (born 1973), Japanese playwright, theater director and writer
Toshiki Ozawa (小澤 俊樹) (born 1932), Japanese photographer
Toshiki Satō (サトウ トシキ) (born 1961), Japanese film director and screenwriter
Toshiki Yoshioka (吉岡 稔記) (born 1976), Japanese drifting driver
Toshiki Yui (唯 登詩樹) (born 1956), Japanese manga artist
