The Wah Wah Mountains are a north-south trending range in Iron, Beaver, and Millard counties in west-central Utah, United States part of the larger Basin and Range Province.

The Wah Wah Mountains are made up of Neoproterozoic- to Paleozoic-aged sedimentary rocks (limestone, dolomite, shale, and sandstone metamorphized into quartzite), overlain by younger Tertiary volcanic rocks (basalt, andesite, dacite, rhyolite, and tuff) on the eastern flank of the range.

A series of thrust faults cut through the sedimentary rocks in the southern end of the range.

[4] It is notable as the only known source of a rare red beryl gemstone, which is mined commercially.

It is an erosional remnant of a Paleogene rhyolite tuff that has abundant doubly terminated crystals of quartz.