A phon is a unit of loudness.
Phon may also refer to:
Phon district, Khon Kaen Province, Thailand Pauline Hanson's One Nation, an Australian political party
People with the given name Phon Sangsingkeo (1907–1980), Thai doctor Chheng Phon (1930–2016), Cambodian artist Pauline Dy Phon (1933–2010), Cambodian botanist Phon Martdee (born 1958), Thai-born Australian Muay Thai instructor
See also Fon (disambiguation) Phone (disambiguation) Phons O'Mara (1887–1958), Irish politician and businessman