CU

CU or cu may refer to: CheckUser, a security feature of the wiki Close-up, in film making Cuba (ISO 3166, FIPS Pub 10-4 and obsolete NATO digram) .cu, Cuba's top-level domain country code Old Church Slavonic (ISO 639 alpha-2 language code) "See you", in e-mail shorthand Civil union, type of legal partnership Cubit, ancient unit of length