The Dicziunari Rumantsch Grischun (abbreviation DRG) is the biggest dictionary of the Romansh language.
Founded in 1904 by the Indoeuropeanist Robert von Planta and the Societad Retorumantscha, which still bears the responsibility of its edition. It comprises the dialects and idioms spoken in the Swiss canton Graubünden.
The term Rumantsch Grischun means "the Romansh language spoken in Graubünden" and shall not be confused with the standard written language (Dachsprache) created in the 20th century with the name of Rumantsch Grischun.