Johann Zanger (1557 – 6 September 1607) was a German jurist, professor of law at Wittenberg University. Born in Brunswick, from 1576 Zanger studied law at Wittenberg University under Hugo Donellus. Subsequently studying in Italy, he gained a doctorate at Basel University in 1580. From 1581 onwards he was professor and judge at the aulic court of justice in Wittenberg. He later became a member of the court of lay assessors, the consistory and the regional court of Lower Lusatia.