Register or registration may refer to:
Periodicals
United States
- Federal Register, a public journal of the United States federal government
- Napa Valley Register, Napa Valley, California
- National Catholic Register, the oldest national Catholic newspaper in the United States
- New Haven Register, Connecticut
- Orange County Register, Santa Ana, California
- Social Register, one of a number of directories of prominent American families
- The Des Moines Register, Iowa
- The New England Historical and Genealogical Register, Boston, Massachusetts
- Accession Register, identifiers assigned to each acquisition in a library or archive
- Register, official student records kept by an academic institution's Registrar
- Check register, booklet used to record account transactions
- Civil registration, government recording of births, marriages, and deaths
- Company register, a record of organizations in the jurisdiction they operate under
- Family register, a registry used to track information of genealogical or legal interest
- Register (General Land Office), head of a district office which sold public lands under the United States' General Land Office system
- Register office (United Kingdom), where births, deaths and marriages are officially recorded
- Registration statement, a set of U.S. legal documents
- Resident registration, government recording of place of residence
- Summit register (or canister), record of visitors to a mountain's summit
- Vehicle registration, compulsory registration of a vehicle with a government authority
- Voter registration, entry onto an electoral roll
Registry organizations
- Indian Register of Shipping, an independent ship classification society, founded in India in 1975
- International Register of Shipping, an independent classification society
- Korean Register of Shipping, a not-for-profit classification society founded in South Korea
- Lloyd's Register, a global engineering, technical and business services organisation and a maritime classification society
- Norwegian International Ship Register, a Norwegian ship register for Norwegian vessels
- Norwegian Ship Register, a domestic ship register for Norway
- Polish Register of Shipping, an independent classification society established in 1936
- Russian Maritime Register of Shipping, an international classification society established in 1913
Other maritime uses
- USS Register, several United States Navy ships
- Naval Vessel Register, the official inventory of ships and service craft in custody of or titled by the United States Navy
Computing and telecommunications
Other technologies
- Camera register or flange focal distance, distance from the mounting flange to the film plane of an interchangeable lens camera
- Cash register, a device for recording cash transactions and storing cash
- Image registration, process of transforming different sets of data into one coordinate system
- Printing registration, in color printing, the correlating of colors in a single image
- User registration, the process of becoming a registered user