| Work | Description | Characters |
|---|---|---|
| Animal Crossing e+ | GameCube video game (released exclusively in Japan) | 1 |
| Animal Crossing: Happy Home Designer | 2015 video game | 1 |
| Animal Crossing: New Horizons | 2020 video game in the Animal Crossing franchise | 1 |
| Animal Crossing: New Leaf | 2012 life simulation video game released by Nintendo | 2 |
| Animal Crossing: Pocket Camp | 2017 mobile game developed by Nintendo | 2 |
| Animal Crossing: Wild World | 2005 social simulation video game | 2 |
| Animal Forest | Original Japan-only N64 Animal Crossing game | 1 |
| Animal Forest+ | 2001 video game | 1 |
| Anna Karenina | Italian serial from 1974 | 1 |
| Anna Karenina | 1935 film by Clarence Brown | 1 |
| Anna Karenina | 1915 film by J. Gordon Edwards | 1 |
| Anna Karenina | novel by Leo Tolstoy | 3 |
| Anna Karenina | 1914 film by Vladimir Gardin | 1 |
| Anna Karenina | 1953 film by Tatyana Lukashevich | 1 |
| Anna Karenina | 1911 lost film by Maurice Maître | 1 |
| Anna Karenina | 2012 film by Joe Wright | 1 |
| Anna Karenina | 1961 film by Rudolph Cartier | 1 |
| Anna Karenina | 1920 film by Frederic Zelnik | 1 |
| Anna Karenina | 2000 miniseries by David Blair | 1 |
| Anna Karenina | 1977 TV serial | 1 |
| Anna Karenina | 2009 Russian film by Sergei Solovyov | 1 |
| Anna Karenina | 1918 film by Márton Garas | 1 |
| Anna Karenina | 1948 film by Julien Duvivier | 1 |
| Anna Karenina | 1974 ballet film by Margarita Pilikhina starring Maya Plisetskaya | 1 |
| Anna Karenina | 1967 film | 1 |
| Anna Karenina | 1997 film by Bernard Rose | 1 |
| Anna Karenina | 1985 film by Simon Langton | 1 |
| Anna Karenina | 2013 film in two parts by Christian Duguay | 1 |
| Anna Karenina. Vronsky's story | 2017 film | 1 |
| Anne of Avonlea | book by Lucy Maud Montgomery | 2 |
| Anne of Green Gables | 1985 television miniseries directed by Kevin Sullivan | 1 |
| Anne of Green Gables | series of children's novels | 1 |
| Anne of Green Gables | 1908 Canadian children's novel,first in a series | 3 |
| Anne of the Island | book | 2 |
| Anne of Windy Poplars | book by Lucy Maud Montgomery | 1 |
| Anne's House of Dreams | book by Lucy Maud Montgomery | 1 |
| Annihilation | 2006 crossover storyline published by Marvel Comics | 1 |
| Annihilation: Conquest | limited series | 1 |
| Anno Dracula | book by Kim Newman | 1 |
| Anohana: The Flower We Saw That Day | 2015 live-action television film | 2 |
| Anohana: The Flower We Saw That Day | 2011 anime series directed by Tatsuyuki Nagai | 3 |
| Anohana: The Flower We Saw That Day - The Movie | 2013 anime film | 2 |
| Another | 2012 film by Takeshi Furusawa | 1 |
| Another | Japanese novel, manga and anime | 1 |
| Antigone | ancient Greek tragedy by Sophocles | 1 |
| Antimatter | Book by John Vornholt, from 1994 | 5 |
| Antinomy of Common Flowers | 1 | |
| Ant-Man | 2015 superhero film produced by Marvel Studios | 3 |
| Ant-Man and the Wasp | 2018 film directed by Peyton Reed | 1 |
| Antony and Cleopatra | English-language opera by Samuel Barber | 1 |
| Ao Haru Ride | Japanese light novel series | 1 |
| Ao Haru Ride | Japanese anime television series | 1 |
| Ao Haru Ride | Japanese manga series | 1 |
| A Paraphrase of the Dutch Hymn to Saint Nicholas | 1810 American poem | 1 |
| Apex Legends | 2019 first-person battle royale video game | 17 |
| Apocalypse Now | 1979 American war film directed by Francis Ford Coppola | 2 |
| A Portrait of the Artist as a Young Man | novel by James Joyce | 1 |
| Apparently, Disillusioned Adventurers Will Save the World | Japanese anime television series | 1 |
| Appare-Ranman! | Japanese anime television series | 1 |
| Appendices of the Lord of the Rings | literary work by J.R.R. Tolkien | 3 |
| Appointment with Death | 1938 Poirot novel by Agatha Christie | 1 |
| A Pup Named Scooby-Doo | television series | 1 |
| Aquaman | 2006 film directed by Greg Beeman | 1 |
| Aquaman | 2018 film directed by James Wan | 2 |
| Aquaman: Battle for Atlantis | 2003 video game | 1 |
| Aqua Teen Hunger Force | American animated television series | 2 |
| Aqua Teen Hunger Force Colon Movie Film for Theaters | 2007 film by Matt Maiellaro, Dave Willis | 3 |
| Aqua Teen Hunger Force Zombie Ninja Pro-Am | 2007 video game | 2 |
| A Question of Price | short story by Andrzej Sapkowski | 1 |
| Arcade | Book by Diana G. Gallagher, from 1995 | 2 |
| Arcane | animated series for the computer game League of Legends set in the fantasy world Runeterra | 11 |
| Archer | American animated television series | 2 |
| Archie's Girls Betty and Veronica | 1 | |
| Archie's Mad House | 2 | |
| Arena | Short story by James Blish | 1 |
| Arena | episode of Star Trek: The Original Series (S1 E18) | 1 |
| Argonautica | poem by Apollonius Rhodius | 1 |
| A Rickle in Time | episode of Rick and Morty (S2 E1) | 1 |
| Ariel | episode of Firefly (S1 E9) | 1 |
| Armageddon Sky | Book by L.A. Graf, from 1997 | 5 |
| A Rock and a Hard Place | Book by Peter David, from 1990 | 6 |
| Arrested Development | American television sitcom | 10 |
| Arrow | American action-adventure television series | 9 |
| Arsène Lupin | French TV series | 1 |
| Arsène Lupin literary series | novels, novellas and short stories written by Maurice Leblanc | 1 |
| Artemis Fowl | book series | 2 |
| Arthur | animated educational television series | 1 |
| Arthurian romance | stories about King Arthur and his knights | 1 |
| Articles of the Federation | Book by Keith R. A. DeCandido, from 2005 | 11 |
| A Scandal in Belgravia | episode of Sherlock | 1 |
| A Scandal in Bohemia | 1891 short story by Arthur Conan Doyle | 1 |
| Ascendance | Star Trek novel by David R. George III | 1 |
| A Series of Unfortunate Events | Book series by Lemony Snicket | 5 |
| A Series of Unfortunate Events | American black comedy-drama television series from Netflix | 5 |
| Ashbringer | Warcraft comic | 1 |
| A Singular Destiny | Book by Keith R. A. DeCandido, from 2009 | 11 |
| Asobi Asobase | Japanese anime television series | 3 |
| Asobi Asobase | Japanese manga series | 3 |
| A Song a Day | 1936 film by Dave Fleischer | 1 |
| A Song of Ice and Fire | series of epic fantasy novels by George R. R. Martin | 88 |