Jenins (Romansh: Gianin) is a municipality in the Landquart Region in the Swiss canton of Graubünden.

Of the rest of the land, 3.6% is settled (buildings or roads) and the remainder (8.3%) is non-productive (rivers, glaciers or mountains).

Most of the population (as of 2000[update]) speaks German (93.8%), with Romansh being second most common ( 1.2%) and English being third ( 0.9%).

[7] The age distribution, as of 2000[update], in Jenins is; 107 children or 14.3% of the population are between 0 and 9 years old.

[4] The historical population is given in the following table:[3][7] Neu-Aspermont Castle is listed as a Swiss heritage site of national significance.

The collection, consists primarily of art and literature and collectors' items of any kind.