The doppa () or doppi ( / / ) is a Uyghur/Uzbek square or round skullcap originating in Central Asia, worn by Karluk Turkic speaking groups such as - Uyghurs, Uzbeks.
The doppa is a specific type of hat within the Tubeteika category.
Differences between the Uyghur doppas and Uzbek doppis can be observed from their shape, method of making, and colour. Uyghur doppas are round, whereas Uzbek doppis are square with pointy edges. Uyghur doppas are relatively softer, while Uzbek doppis are slightly harder and set into shape with mold.