Valeriana occidentalis is a species of flowering plant in the honeysuckle family known by the common name western valerian.

It is an erect herb growing 30 to 75 centimeters tall with whorls or opposite pairs of leaves at intervals along stem.

The leaves are generally divided into lobes or are compound, with each leaf made up of a few oval-shaped leaflets.

The fruit is a ribbed achene about half a centimeter long which may be tipped with the featherlike remains of the flower sepals.

Valeriana occidentalis is found in the US in the following states: AZ, CA, CO, ID, MT, NV, OR, SD, UT, WA, WY.