Apt. is an abbreviation for

apartment An apartment (American English, Canadian English), flat (British English, Indian English, South African English), tenement (Scots English), or unit (Australian English) is a self-contained housing unit (a type of residential real estate) that ...

. Apt or APT may also refer to:

Arts, entertainment and media

* ''Apt.'' (album), a 2006 album by Chilean singer Nicole * "Apt." (song), a 2024 song by Rosé and Bruno Mars * ''Apt.'' (film), a 2006 South Korean horror film * ''Apt'', a literary journal published by Aforementioned Productions * APT Entertainment, a film production company in the Philippines * '' Apt Pupil'', a novella by Stephen King, originally published in the 1982 ** ''Apt Pupil'' (film), a 1998 film based on Stephen King's eponymous novel * Apt Records, a subsidiary record label of ABC-Paramount Records * Alabama Public Television, a network of PBS member stations in Alabama, U.S.A. *

American Players Theatre American Players Theatre is an American classical theatrical troupe and theater complex located near Spring Green, Wisconsin. It has been called the best classical theater company in the United States by the late ''Wall Street Journal'' drama ...

, a classical theater located in Spring Green, Wisconsin *

American Public Television American Public Television (APT) is an American nonprofit organization and syndicator of programming for public television stations in the United States. It distributes public television programs nationwide for PBS member stations and indepen ...

, a television program provider in the United States

Computing and software

* APT (programming language) (Automatically Programmed Tool), a high-level computer programming language *

APT (software) Advanced Package Tool (APT) is a free-software user interface that works with core libraries to handle the installation and removal of software on Debian and Debian-based Linux distributions. APT simplifies the process of managing software on ...

, Debian's high-level package management system, also used by other Linux-based operating systems * Almost Plain Text, or Doxia, a wiki-like syntax used mainly by Apache Maven * Annotation processing tool, a utility for executing annotation processors in the Java programming language *

Advanced persistent threat An advanced persistent threat (APT) is a stealthy threat actor, typically a State (polity), state or state-sponsored group, which gains unauthorized access to a computer network and remains undetected for an extended period. In recent times, the ...

, a set of stealthy, continuous and especially state-sponsored computer hacking threat actors * Applied Predictive Technologies, a statistical business analysis software company * Advanced Programming Techniques Ltd., creators of the Command CICS software product

Finance

* Automated Payment Transaction tax, a proposal to replace all taxes with a single tax on each and every transaction in the economy * Artist Pension Trust, an investment program designed for artists *

Arbitrage pricing theory In finance, arbitrage pricing theory (APT) is a multi-factor model for asset pricing which relates various macro-economic (systematic) risk variables to the pricing of financial assets. Proposed by economist Stephen Ross (economist), Stephen Ross i ...

, a general theory of asset pricing

People

* Jerome Apt (born 1949), Ph.D., an American astronaut * Leonard Apt, inventor of the Apt test * Milburn G. Apt (1924–1956), US test pilot

Places

Apt Cathedral Apt Cathedral (''Cathédrale Sainte-Anne d'Apt'') is a Roman Catholic church building, church and former cathedral located in the town of Apt, Vaucluse, Apt in Provence, France now designated as a Monument historique, national monument. The shrin ...

, a former cathedral, and national monument of France, in the town of Apt in Provence *

Apt, Vaucluse Apt (; Provençal dialect, Provençal Occitan language, Occitan: ''At / Ate'' in both classical and Mistralian norms) is a Communes of France, commune in the Vaucluse Departments of France, department in the Provence-Alpes-Côte d'Azur Regions of ...

, a commune of the Vaucluse département of France * Arrondissement of Apt, an arrondissement in the Vaucluse département of France * Canton of Apt, France *

Opatów Opatów (; ) is a town in southeastern Poland, within Opatów County in the Świętokrzyskie Voivodeship (Holy Cross Province). Historically, it was part of a greater region called Lesser Poland. In 2012 the population was 6,658. Opatów is located ...

, a town in Poland, called "Apt" in the Yiddish language

Science and medicine

* Ammonium paratungstate, a tungsten-based chemical compound * Atom-probe tomography, an atomic-resolution microscopy technique * Attached proton test, a technique used in carbon-13 nuclear magnetic resonance spectroscopy * Automatic picture transmission, a weather satellite system * Anterior

pelvic tilt Pelvic tilt is the orientation of the pelvis The pelvis (: pelves or pelvises) is the lower part of an Anatomy, anatomical Trunk (anatomy), trunk, between the human abdomen, abdomen and the thighs (sometimes also called pelvic region), toge ...

* Acyl-protein thioesterase, an enzyme family that cleaves cysteine thioesters

Transportation

* Advanced Passenger Train, a tilting passenger train designed and built during the late 1970s by British Rail * Association for Public Transportation, a Boston-based nonprofit organization * Australian Pacific Touring, an Australian tour operator

Others

* Apt (Egyptian), may refer to several deities or to a location in Egypt * Apt (Martian crater) * Apt test, a medical test used to differentiate fetal or neonatal blood from maternal blood * Apt meteorite of 1803, a meteorite which fell in

Provence-Alpes-Côte d'Azur Provence-Alpes-Côte d'Azur (commonly shortened to PACA), also known as Région Sud, is one of the eighteen Regions of France, administrative regions of France, located at the far southeastern point of the Metropolitan France, mainland. The main P ...

, France * American Perimeter Trail, a proposed trail system in the continental United States * Animation photo transfer process (APT process), a process used in animation * Applied Probability Trust, a UK-based non-profit-making foundation for study and research in the mathematical sciences * APT assault rifle * ASEAN Plus Three, the Association of Southeast Asian Nations plus China, South Korea, and Japan * Asia-Pacific Telecommunity, an intergovernmental organisation concerning communications technology * The Asia Pacific Triennial, a major art exhibition at the

Gallery of Modern Art, Brisbane The Gallery of Modern Art (GOMA) is an art museum located within the Queensland Cultural Centre in the South Bank precinct of Brisbane, Queensland, Australia. The gallery is part of QAGOMA. Opened on 2 December 2006, the GOMA is Australia's l ...

, Australia * Asian Poker Tour, a major poker tour focusing on the Asia-Pacific region * Association for Preservation Technology International * Association for Psychological Therapies, a provider of accreditation and training for mental health professionals * Armor Piercing-Tracer(AP-T) - Armour Piercing ammunition with tracer