Montriac is the name of several micronational states in the Valtir Sector. These were:
- the Principality of Montriac, which existed from February to March 2012.
- the Archduchy of Montriac, a province of the Kossian Empire in March 2012.
- the Republic of Montriac, a rebel republic that seceded from the Kossian Empire.
- the Prefecture of Montriac, a region of the now-defunct Federal Union of Cizland.
The name Montriac comes from the name of one of the first Garrshirian micronations, Montblanc. Montriac is the union of two words: Mons, Latin for "mount", and Tri, "three". This is originated due to the three of the five peaks visible from the area that used to be Montriac.