Matej is a given name that originates from Slovak and is one of the most common male names in both Slovakia and Slovenia, also often in Croatia. The name is originally derived from the disciple that replaced Judas. Foreign versions of the name include Matthew or Matthias in English, Mathias in German, Matei in Romania and Mateo in Italian. Matej, being a Biblical (see Acts 1:23) name can be easily cross-referenced with the corresponding name in other languages. The Slovak pronunciation of the name consists of Matej with a soft "j".

The Hebrew version of the name is Mattithyahu or Matisyahu which translate to "Gift of Yahweh" in Standard Hebrew and Tiberian Hebrew.

It may refer to:

In military:

• Matej Kocak
  Matej Kocak
  Matej Kocak , a United States Marine Corps sergeant, was posthumously awarded both the Army and Navy Medals of Honor, for "heroism above and beyond the call of duty" in action against the enemy on July 18, 1918...
  
  , United States Marine Corps sergeant
• Matej Zmajevic
  Matej Zmajevic
  Matija Zmajević was admiral of the Baltic Fleet and the shipbuilder of the famous Russian Tsar Peter I the Great, and for whom he built a fleet in Voronezh.-Early life:He was born in a prominent Croatian Catholic family from Perast Matija Zmajević (also Matej Zmajević, in Russia Matvei...
  
  , Bokelj of Croatian origin

In other fields:

• Matej Bel
  Matej Bel
  Matthias Bel or Matthias Bél was a Lutheran pastor and polymath from the Kingdom of Hungary. He is also known as the Great Ornament of Hungary . He described himself as "lingua Sla-vus, natione Hungarus, eruditione Germanus"...
  
  , Slovak polymath, encyclopedist, philosopher, historian, Lutheran pastor and scholar
• Matej Mavrič
  Matej Mavric
  Matej Mavrič is a Slovenian international footballer, who currently plays for SV Kapfenberg.-Club career:His former clubs include NK Piran, NK Primorje and NK Gorica ....
  
  , Slovenian international football (soccer) player
• Matej Ninoslav
  Matej Ninoslav
  Matej Ninoslav , son of Radivoj, was a Bosnian Ban . Most of Bosnia was under the Kingdom of Hungary from 1235 to 1241. Ninoslav was also a Prince of Split in 1242–1244 during the local civil war. Ninoslav established control of most of Bosnia after the Hungarian withdrawal...
  
  , Bosnian-Croat Ban
• Matej Sternen
  Matej Sternen
  Matej Sternen was a leading Slovene Impressionist painter.Sternen was born in Verd, now part of the Carniolan municipality of Vrhnika, then part of the Austro-Hungarian Empire. He attended the secondary school in Krško and attended technical school in Graz between 1888 and 1891...
  
  , Slovenian painter