Präz (Romansh: Preaz) was a municipality in the district of Hinterrhein in the Swiss canton of Graubünden. On 1 January 2010 the municipalities of
Portein 
, Präz, Sarn and Tartar merged into the municipality of
Cazis 
.
History
Präz is first mentioned in 1290-98 as Pare(t)z.
Geography
Präz has an area, as of 2006, of 11.3 km2 (4.4 sq mi). Of this area, 45.3% is used for agricultural purposes, while 47.9% is forested. Of the rest of the land, 2.8% is settled (buildings or roads) and the remainder (4%) is non-productive (rivers, glaciers or mountains).