Turban Geyser, Geyser in Yellowstone National Park, United States.

Turban Geyser is a fountain-type geyser in the Upper Geyser Basin of Yellowstone National Park, part of the Grand Geyser complex. Its eruptions are tied to Grand Geyser: in the hours before Grand erupts, Turban erupts for about five minutes every 15 to 25 minutes, throwing water 5 to 10 feet (2 to 3 m) high. During Grand's eruption Turban erupts continuously, reaching up to 20 feet (6 m).

Dr. A.C. Peale named Turban Geyser in 1872, after the sinter deposits around its basin, whose shape recalled a turban headpiece. The name has been used since.

The name comes from the sinter deposits around its basin, whose shape reminded Dr. A.C. Peale of a turban headpiece when he named the geyser in 1872. Visitors watch it as part of the Grand Group: its five-minute bursts every 15–25 minutes signal that Grand Geyser is likely to erupt within hours.

The geyser erupts at regular intervals throughout the day, allowing visitors to observe multiple eruptions during a short visit. Plan to spend a moderate amount of time here if you want to see the full display of its water jets.

Turban erupts continuously during Grand Geyser's eruptions, reaching up to 20 feet (6 m), and keeps erupting intermittently for about an hour afterwards alongside Vent Geyser. Its steam and spray can hide Grand from view, and Grand's own steam can hide Turban.