Toshihiko Izutsu (?? ??, Izutsu Toshihiko, 4 May 1914 – 7 January 1993) was Professor at Keio University in Japan and author of many books on Islam and other religions.
He taught at the Institute of Cultural and Linguistic studies at Keio University in Tokyo, the Iranian institute of Philosophy in Tehran, and McGill University in Montreal, Quebec, Canada.
He was fluent in over 30 languages, including Arabic, Persian, Sanskrit, Pali, Chinese, Japanese, Russian and Greek.