ANR

People

 * Akkineni Nageswara Rao, Telugu film actor.

Places

 * Akkineni Nageswara Rao College, sometimes called ANR College
 * Antwerp International Airport (IATA code)

Entities

 * Agence nationale de la recherche, a French funding agency for research
 * Alleanza Nazzjonali Repubblikana, a Maltese pressure group
 * Alliance Nationale Républicaine (National Republican Alliance), an Algerian political party
 * Asociación Nacional Republicana (National Republican Association), a Paraguayan political party
 * Australian National Railways Commission - Australian rail operator from 1975 until 1987
 * Agencja Nieruchomości Rolnych - Polish estate agency

Land use and planning

 * Approval Not Required (Under the Subdivision Control Law), a process for subdividing land in Massachusetts, USA, under MGL Chapter 41

Mathematics

 * Absolute neighborhood retract, a type of topological space (mathematics)

Military

 * Alaska NORAD Region, an alternate phrase for the Eleventh Air Force
 * Agence Nationale de Renseignements, a government intelligence agency of the Zaire
 * Aeronautica Nazionale Repubblicana, the air force of the Italian Social Republic during World War II

Music

 * Anew Revolution, a heavy metal band from Austin, Texas
 * Awesome New Republic, a two-piece indie band from Miami, Florida

Society

 * Adult Nursing Relationship, a type of erotic relationship (see Erotic lactation)

Technology

 * Active Noise Reduction, more commonly Active noise control
 * Ambiguous name resolution, a search algorithm for LDAP implemented in Microsoft's Active Directory
 * "Application not Responding", a message in Android operating system
 * Atmosphere Normale de Reference, a standard used with air compressors
 * Automatic Number-plate Recognition, more commonly ANPR (automatic number-plate recognition)