Johannes Fried (born 23 May 1942, in Hamburg) is a German historian, professor, and medievalist.

Fried studied at the University of Heidelberg, where he obtained his doctorate in 1970 and his habilitation in 1977.

He was a visiting Fellow at the Institute for Advanced Study in Princeton from 1995 to 1996.

Johannes Fried considers Notger von Lüttich, not Johannes Canaparius, to be the author of Vita sancti Adalberti episcopi Pragensis on Adalbert von Prag (* 956 – † 997), written around 1000, which for the first time mentions Danzig (Gdansk) as "urbs Gyddanyzc".

(Only monographs are listed below) Fried has also published a large number of book chapters and articles in journals.