Johann Samuel Traugott Gehler (1 November 1751, in Görlitz – 16 October 1795, in Leipzig) was a German lawyer and physicist who lived in the Holy Roman Empire.
While a student, his influences included physicist Johann Heinrich Winckler.
[1][2] He is best remembered as the author of a popular dictionary of physical sciences, Physikalisches Wörterbuch, published from 1787 in six volumes.
Decades later, the dictionary was edited and re-issued in 11 volumes (1825–45); its editors being Heinrich Wilhelm Brandes, Leopold Gmelin, Johann Caspar Horner, Carl Ludwig Littrow, Christian Heinrich Pfaff and Georg Wilhelm Muncke.
In 1783 he published a German translation of Tiberius Cavallo's A complete treatise on electricity as Vollständige Abhandlung der theoretischen und praktischen Lehre von der Electricität.