Tympanum or timpanum or thympanon (Latin form) or tympanon (Greek form) may mean:

• In biology, tympanum – Eardrum
• In classical architecture, tympanum is an architectural element located within the arch or Pediment
• In music, timpano – singular of timpani, a kettledrum
• In amphibian biology, tympanum - a hearing organ/gland in frogs and toads, a flat red oval on both sides of a frog's head
• In insect biology, tympanum or tympanal organ - a hearing organ in insects

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