Primož Trubar or Primus Truber (pronunciation ) (1508 – 28 June 1586) was a Slovenian Protestant Reformer of the Lutheran tradition, mostly known as the author of the first Slovene language printed book, the founder and the first superintendent of the Protestant Church of the Duchy of Carniola, and for consolidating the Slovene language.
Trubar introduced Lutheranism in Slovenia, but after the Austrian Habsburgs introduced the Counter-Reformation only a small community remained in the Prekmurje region.
Trubar is the key figure of Slovenian cultural history and in many aspects a major historical personality.