The Lechquellen Mountains (German: Lechquellengebirge) or Lechquellen range is a small mountain group within the Northern Limestone Alps of the Eastern Alps. It lies entirely within the Austrian state of Vorarlberg and includes the upper reaches of the river Lech with its headstreams in a horseshoe shape as well as the Upper Großwalsertal valley.

The name Lechquellengebirge (literally "Lech source mountains") is certainly accurate, for the greater part of the mountain range surrounds the upper reaches of the Lech with its two spring-fed streams, the Formarinbach and the Spullerbach. Nevertheless, it is in fact an artificial name made up by Walther Flaig at a time when the development of mountaineering in the Alps had been largely completed. Previously, the mountain range had been called either the Klostertal Alps or counted as part of the Lechtal Alps east of the Flexen Pass.

Artificial names often find it hard to establish themselves in everyday language.