Collinsia linearis is a species of flowering plant in the plantain family known by the common name narrowleaf blue-eyed Mary.

It is native to the coniferous forests of the Klamath Mountains in northern California and southern Oregon sometimes on serpentine soils.

Collinsia linearis is an annual herb producing an erect stem 10 to 40 centimeters tall with narrow leaves turned under at the edges.

Each flower arises on a pedicel coated in glandular hairs.

The corolla of the flower angles sharply from the calyx of sepals.