Spindle Geyser is a geyser in the Lower Geyser Basin of Yellowstone National Park in the U.S. state of Wyoming.
Spindle Geyser is part of the White Creek Group which includes A-0 Geyser and Botryoidal Spring. It is found along the bank of White Creek about 1⁄2 mile (0.8 km) southeast of the Surprise Pool parking area.
It erupts for a duration of a few seconds with an interval of 1–3 minutes between eruptions. Eruptions tend to be small, sometimes no more than a vigorous roiling of the pool but can reach . Prior to 1985, Spindle had eruptions as large as . Spindle also generates subterranean thumps that can be felt when standing near the geyser.