Lingula is Latin for "little tongue". It can stand for:

• Lingula (brachiopod), a brachiopod genus of the family Lingulidae, which is among the few brachiopods surviving today but also known from fossils over 500 million years old
• A wide strap above the instep in sandals
• In anatomy:
  • the Lingula of left lung, one of the segments of the left lung with a tongue-shape
  • The Sphenoidal lingula, a part of the sphenoid bone
  • The Lingula of mandible, a ridge on the medial aspect of the body of the mandible, just anterior to the mandibular foramen
  • the Lingula of cerebellum
  • Taenia of fourth ventricle
  • In the vasiform orifice of the Aleyrodidae a small, tongue-like organ assisting in the excretion of honeydew