Delphinium barbeyi is a species of flowering plant in the buttercup family known by the common names subalpine larkspur, tall larkspur, and Barbey's larkspur. It is native to the interior western United States, where it occurs in the states of Arizona, Colorado, New Mexico, Utah, and Wyoming. The plant is long-lived, capable of exceeding 75 years of age. It occupies wet habitat types in subalpine and alpine climates. It is a dominant member of the herb layer in many places. It can often be found growing beneath aspens.