NUL may refer to: National University of Lesotho National Urban League, US civil rights organization Newcastle-under-Lyme, a town in Staffordshire, England Borough of Newcastle-under-Lyme, a local government district Nul (band) or NuL, a South African band Nul, rulers of a Galactic Empire in Brian Aldiss's Bow Down to Nul Nulato Airport (IATA code), airport in Nulato, Alaska
Computers The abbreviation for the null character in many character sets The NUL: device in DOS and related systems
De Nul Agnes De Nul (born 1955), Belgian actress André De Nul (1946–2025), Belgian footballer Jan De Nul, a family-owned company, originally from Belgium