AM or Am may refer to:

• A minor, a minor scale in music
• A.M. (Chris Young album)
• A.M. (Wilco album)
• AM (Abraham Mateo album)
• AM (Arctic Monkeys album)
• AM (musician), American musician
• Am, the A minor chord symbol
• Armeemarschsammlung (Army March Collection), catalog of German military march music
• Andrew Moore (musician), Canadian musician known as A.M.
• DJ AM, American DJ and producer
• Skengdo & AM, British hip hop duo

• AM (radio program), Australian current affairs radio program
• American Morning, American morning television news program
• Am, Antes del Mediodía, Argentine current affairs television program
• Am, a character in the anthology Star Wars: Visions
• @fter Midnight (TV series) (logo: @m), U.S. late night comedy celebrity game show

• Allied Mastercomputer, the antagonist of the short story "I Have No Mouth, and I Must Scream"

• Aston Martin, a British sportscar manufacturer

• Active Minds, a mental health awareness charity
• Arts et Métiers ParisTech, a French engineering school
• Australian Museum, a museum in Australia
• Master of Arts, an academic degree

• A US Navy hull classification symbol: Minesweeper (AM)
• Air marshal, a senior air officer rank used in Commonwealth countries
• Anti-materiel rifle, rifle designed for use against military equipment
• Aviation structural mechanic, a U.S. Navy occupational rating

• AM, a complexity class related to Arthur–Merlin protocol
• Adrenomedullin, a protein
• Air mass (astronomy), measure of the amount of air along the line of sight in astronomical observations
• Am, tropical monsoon climate in the Köppen climate classification
• Americium, symbol Am, a chemical element
• Attometre, a unit of length
• attomolar (aM), a unit of molar concentration

• Amplitude modulation, an electronic communication technique
  • AM broadcasting, radio broadcasting using amplitude modulation
• Additive manufacturing, or 3-D printing, a process of making a three-dimensional solid object of virtually any shape from a digital model.
• Agile modeling, a software engineering methodology for modeling and documenting software systems
• Automated Mathematician, an artificial intelligence program
• .am, Internet domain for Armenia
• .am, a file extension associated with Automake software

• a.m., ante meridiem, the time period from midnight to noon, written e.g., 6 a.m.
• Anno Mundi, a calendar era based on the biblical creation of the world

• A.M. (automobile), a 1906 French car
• Aeroméxico (IATA airline code AM), airline in Mexico
• All-mountain, a discipline of mountain biking
• Arkansas and Missouri Railroad

• First-person singular present of the copula verb to be
• Am (cuneiform), a written syllable
• Member of the Order of Australia, postnominal letters which can be used by a Member of the Order
• Assembly Member (disambiguation), a political office
  • formerly a Member of the National Assembly for Wales, now Member of the Senedd
  • Member of the London Assembly
• Amharic language (ISO 639-1 language code am)
• Anguilla, LOC MARC code AM
• Armenia (ISO country code AM)
• Attacking midfielder, a position in association football
• The Book of Amos, part of the Tanakh and Old Testament
• Australian Museum, Sydney

• All pages with titles beginning with AM
• All pages with titles beginning with am
• All pages with titles containing AM or AMs
• Pro–am
• `am (disambiguation)
• A&M (disambiguation)
• AM2 (disambiguation)
• AMS (disambiguation)