Lepton (disambiguation)

The term lepton from the Greek λεπτός (meaning "small") may refer to:
 * Lepton, one of the two classes of fermionic (matter) particles
 * Greek lepton, a small denomination of currency in Greece
 * Lepton, West Yorkshire, England
 * Lepton (album), a composition by Charles Wuorinen
 * Lepton image compression format, a computer file signature