The fez, also called tarboosh/tarboush, is a felt headdress in the shape of a short, cylindrical, truncated (peakless) hat, usually red, typically with a black tassel attached to the top. The name "fez" may refer to the Moroccan city of Fez, where the dye to color the hat was extracted from crimson berries. However, its origins are disputed.

Fez or Fes is a city in northern inland Morocco and the capital of the Fès-Meknès administrative region. It is the second largest city in Morocco, with a population of 1.11 million, according to the 2014 census. Located to the northwest of the Atlas Mountains, it is surrounded by hills and the old city is centered around the Fez River flowing from west to east. Fez has been called the "Mecca of the West" and the "Athens of Africa". It is also considered the spiritual and cultural capital of Morocco.