Fulk is an old European masculine given name, probably deriving from the Germanic folk ("people" or "chieftain"). It is cognate with the French Foulques, the German Volk, the Italian Fulco and the Swedish Folke, along with other variants such as Fulke, Foulkes, Fulko, Folco, Falquet or Folquet, and so on. However, the above variants are often confused with names derived from the Latin falco ("falcon"), such as Fawkes, Falko, Falkes, and Faulques.
It is also a surname.