The Tosafot, Tosafos or Tosfot (Hebrew: תוספות) are medieval commentaries on the Talmud. They take the form of critical and explanatory glosses, printed, in almost all Talmud editions, on the outer margin and opposite Rashi's notes.
The authors of the Tosafot are known as Tosafists (בעלי התוספות); for a listing see List of Tosafists.[citation needed]