Matthias Behr (born 1 April 1955 in Tauberbischofsheim, Baden-Württemberg) is a former German foil fencer.

[3] Matthias Behr is married to the former foil fencer Zita Funkenhauser.

After termination of his career as a competitive athlete, he became principal of the part-time boarding school at the Olympic base of Tauberbischofsheim.

On 19 July 1982, Matthias Behr, and foil fencing in general, became widely known outside of those interested in the sport when, at the world championship in Rome, Behr's blade broke and struck incumbent world champion Vladimir Smirnov in the eye, leading to Smirnov's death nine days later.

[4] Forty years later, amidst the Russian invasion of Ukraine, Behr called Smirnov's former wife in Ukraine, and gave her son-in-law and two grandchildren refuge during the war.