NFU is a three-letter initialism which may stand for:
Nanjing Forestry University, a university in Nanjing, China National Farmers Union (disambiguation), in several countries National Film Unit, a New Zealand film production company National Formosa University, a university in Taiwan New Foundations with Urelements, an axiomatic set theory in mathematical logic No first use, a nuclear pledge or policy North Ferriby United F.C., an English football team National Froebel Union, a fore-runner of the National Froebel Foundation