West Singhbhum or Pashchimi Singhbhum(hindi:पश्चिमी सिंहभूम जिला) (odia:ପଶ୍ଚିମ ସିଂହଭୁମି ଜିଲ୍ଲା) is one of the 24 districts of Jharkhand state, India. It came into being in 1990, when the old Singhbhum district was bifurcated. Chaibasa is the district headquarters.