LGB may refer to:

  • Long Beach Airport in California
  • Laser-guided bomb
  • Lateral geniculate body in human brain, a.k.a. lateral geniculate nucleus
  • LGB (trains), brand in model railroading
  • "LGB", term for lesbian, gay, and bisexual people, sharing history with term "LGBT"
  • Lou Gramm Band, led by Lou Gramm
  • Little grey bird, a.k.a. Little brown job
  • Little Golden Books for children
  • La Grande Boissière, largest campus: International School of Geneva
  • Lectures on Government and Binding: The Pisa Lectures, a book by American linguist Noam Chomsky