A1

A1, A-1 or A.1. may refer to:

 Education 
 A1, the Basic Language Certificate of the Common European Framework of Reference for Languages
 Language A1, the former name for "Language A: literature", one of the IB Group 1 subjects
 A1, a secondary school subdivision in the  Congolese education system
 A1, a baccalauréat series in the education system of some parts of France
 A1, a baccalaureate in the Gabonese education system, see Education in Gabon
 A1, the highest category of Qualified Flying Instructor in the Central Flying School of the UK Royal Air Force

 Grades 
 A1, a grade for the Leaving Certificate, a qualification in the education system of Ireland
 A1, the highest available grade for the Sijil Pelajaran Malaysia examination in Malaysia
 A1, a grade for the Senior Secondary Certificate Examination in Nigeria, see Education in Nigeria
 A1, a grade for the Singaporean GCE 'O' Level, an examination in the education system of Singapore
 A-1, an Academic grading in Pakistan commonly used in the education system of Pakistan

 Entertainment 

 Books, magazines, comics and manga 
 A1 (comics), a comics anthology
 A-1 Comics, a 1944–1955 Golden Age comics publication
 A1—The Great North Road, a book by Paul Graham (photographer)

 Cinema and movies 
 A-1 Headline, a 2004 Hong Kong movie
 A 001, operazione Giamaica (Our Man in Jamaica), a 1965 Italian adventure movie directed by Ernst R. von Theumer
 A1, a 1999 Syrian movie, see List of Syrian movies
 A1 (2019 movie), Indian Tamil movie

 Companies 
 A1 Film Company, a Burmese cinema company
 A-1 Pictures, a Japanese animation studio

 Games 
 A1 Games, an American video game publisher for the PlayStation
 A1 – Slave Pits of the Undercity, a part of Scourge of the Slave Lords, and adventure module for the Dungeons & Dragons role-playing game
 Larsen's Opening, a chess move, A01 in ECO code
 A1, a square on a chessboard

 Music and dance 
 Aone Beats or Aone, music producer
 A1, a part in contra dance choreography
 A-1 Sound Studios, a recording studio owned by Herb Abramson
 A-1, an American rap group behind the album Mash Confusion
 A-One (band), a Mandopop group
 A1 (band), a British-Norwegian boy band
 A1 Bentley, rapper and reality TV star (from Love & Hip Hop: Hollywood)
 A1 x J1, teenage rappers who had a hit with "Latest Trends" featuring Aitch

 Albums 
 A1, an album by Ertuğ Ergin
 A1, an album by Tony Cetinski
 A One, an album by Ayumi Hamasaki
 A1 (album), a 2002 album by Norwegian band A1

 Television and radio 
 A-One (TV channel), a Russian music channel
 A1 TV channel (Macedonia)
 A1 Report, a television station in Albania
 America One, an American television network
 A 1, see List of radio stations in Austria and Liechtenstein
 A1, a promotional name for CHIN (AM) radio in Canada
 A1, a Slovenian radio network owned by Radiotelevizija Slovenija
 A-1 Detective Agency, a fictional detective agency in the radio series I Love a Mystery

 Science 

 Astronomy 
 A1, a class of star, see stellar classification
 "A1" subobject designations, including:
 NGC 3603-A1

 Roads 
A1 roads in several countries; see List of A1 roads