Sonet may refer to: Airsport Sonet, a Czech ultralight aircraft Sonet Records, European record label Sonet Film, production company 3821 Sonet, asteroid Synchronous optical networking (SONET) Kia Sonet, a subcompact crossover car model See also Saab Sonett, a 1970s car So-net, Japanese internet service provider majority owned by Sony Sonnet (disambiguation)