Johannes Vetter (German: ; born 26 March 1993) is a German track and field athlete who competes in the javelin throw. He is the 2017 World Champion. His personal best of 94.44 m is the German record. It also ranks him second on the overall list. He currently trains under Boris Obergföll and is a member of LG Offenburg's track and field squad. He was previously with SV Saar 05 Saarbrücken and Dresdner SC.
Vetter was born and raised in Dresden. Upon receiving his Abitur, he joined the Landespolizei Sachsen ("Saxony State Police") and has been a Sportsoldat ("Sport Soldier") since September 2014. He has a tattoo of an Ancient Greek javelin thrower on his back.
In 2011, Vetter competed in the European Junior Championships. He made it through the qualifying round with a personal best 71.60 m throw. He then finished 12th in the final with a throw of 65.87 m. Zigismunds Sirmais won the event with a throw of 81.53 m.