- 12 Grimmauld Place (PotterGrangerous)
- 12¾", Walnut, dragon heartstring
- 18 Tudor Crescent (Mal-man)
- 1928 seige of Leutus Hall (TN)
- 1991–1992 school year (LOTW)
- 2010 Quidditch World Cup (Scopatore)
- 2014 Quidditch World Cup (Nemolee.exe)
- 2014 Quidditch World Cup Qualifiers (Nemolee.exe)
- 2014 Quidditch World Cup Qualifiers (Nemolee.exe)/UEQA/Group A
- 2014 Quidditch World Cup Qualifiers (Nemolee.exe)/UEQA/Group B
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- 2018 Quidditch World Cup Qualifiers (Nemolee.exe)
- A Better Place
- A Black Comedy
- A Black Guardian Angel
- A Broken Soul
- A Change of Plans (short story)
- A Christmas Carol
- A Clandestine Reality
- A Cost Too Much
- A Dursley Witch at Hogwarts
- A Family Like None Other
- A Hero
- A History of Staircases
- A Keen Observer
- A Peccatis
- A Perfectly Potent Potion (short story)
- A Plan for Slytherin
- A Simple Twist Of Fate
- A Slant-Told Tale (novel)
- A Summer Like None Other
- A Time Well Tested
- A Weasley Christmas
- A Weirder Shade of Midnight
- A Year Like None Other
- A Year in the Life
- Aaron Blackwell (The Eternal Wayfarer)
- Abandinus (LOTW)
- Abbott Manor (ASTOF)
- Abdul Alhazred (COE)
- Aberration
- Abigail Larkin (SSK)
- Abraxan (Lord Caesar)
- Abraxan tail hair (Mal-man)
- Absalon Dumbledore (MasterOfDwarves)
- Accipite Mentis (Kaaterskill Chronicles)
- Accroître Momentum (OD)
- Achilles Peverell (COTB)
- Acilo (CV)
- Acrimonium (ASTOF)
- Actoria Augusta (LOB)
- Actoria gens (LOB)
- Ada Schmidt (QOTH)
- Adam Comstock (Scopatore)
- Adam Davies (Hogwarts Mystery)
- Adam Fox's wand (Reynoman)
- Adam Fox (Reynoman)
- Adamant (LOTW)
- Adjurators (EOTN)
- Adonai (BOTP)
- Adonis Lestrange (SS98)
- Adrian Dumitru I (Scopatore)
- Adrian Pucey (DLD)
- Adrian Shade (AFS)
- Adriana Watergrass (Baroness)
- Adrianna Milosovici (Sunshine and Blazing Ashes)
- Adric Walsh (Ajrand)
- Aenean Church (DM)
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- Aernus (DM)
- Afghani National Quidditch team (Nemolee.exe)
- AfterMagic
- After the Fall (short story)
- Age-regression spell (BlueKraid)
- Age of the Dawn (EOTN)
- Age of the Morn (EOTN)
- Agency of Magical Transportation (Thatcher series)
- Agilbert Fontaine (ARH)
- Agilbert Fontaine (CI)
- Agilbert Fontaine (Ninclow)
- Ahkatheria (DM)
- Aideen Graves Scholt (Unicorn Club)
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- Ainsley Loch (Hybird)
- Aion (DM)
- Aion (LOTW)
- Aitor Pazos (Vincent Mackay)
- Ajaxilos Ambroise (Shadow North)
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- Al-Aernus (DM)
- Al-Antidia (DM)
- Al-Antidian Empire (DM)
- Al-Antidian Empire (LOTW)
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- Al-Antidian language (DM)
- Alain Delacour (Scopatore)
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- Alastor Redwood's Wand (WittyPiglet)
- Albanian National Quidditch team (Nemolee.exe)
- Albert Bynes (Ajrand)
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- Albiron Mattingdom (Ajrand)
- Albus Dumbledore: Expiation
- Albus Dumbledore (Epithalamium series)
- Albus Dumbledore (Lord Caesar)
- Albus Dumbledore (Lord Dumbledore)
- Albus Dumbledore (Scopatore)
- Albus Dumbledore and the Everlasting Flame
- Albus Dumbledore and the Phoenix Feather
- Albus Dumbledore and the Wizard's Ruse
- Albus Potter
- Albus Potter and the Black Badger Society
- Albus Potter and the Dragonfang Wand
- Albus Potter and the Dungeon of Merlin's Mist
- Albus Potter and the Eagle's Watch
- Albus Potter and the Fortress of the Dead
- Albus Potter and the Foulest Book
- Albus Potter and the Rise of the Dark Alliance
- Albus Potter and the Silver Wizard
- Albus Potter and the Sorting of the Students
- Albus Potter and the Year of the Badger
- Aldis (GATS)
- Alec Evans (Kaaterskill Chronicles)
- Aleister Crane (SB)
- Aleister Fontaine (MP series)
- Alessandro Andolini (Scopatore)
- Alex John (Shadow North)
- Alex Mihalios (Scopatore)
- Alexander Brown (Ajrand)
- Alexander John-Larson (Scopatore)
- Alexander Morrison's relationships (Skullguy123)
- Alexander Morrison's wand (Skullguy123)
- Alexander Morrison (Skullguy123)
- Alexander Potter (THE)
- Alexander Zhuvinsky (XNDUIW Simon)
- Alexandra Arthur (Kokoa)
- Alexandra Potter (Scopatore)
- Alexandra Quick and the Deathly Regiment
- Alexandra Quick and the Lands Below
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- Alexandra Quick and the Thorn Circle
- Alexandra Quick series
- Alexios (CV)
- Alexios (disambiguation)
- Alexios VII Anemas (DM)
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- Alfidan Wizarding Bank (Vincent Mackay)
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- Aliens and Strangers
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- All Favor Potion
- All Things Life Must Be
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- Allagízvieramagus
- Allan Durbridge (Mal-man)
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- Allison Caine's wand (Kaestal)
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- Aloisius Potter, 7th Duke of Inverness (DM)
- Alone and Palely Loitering (short story)
- Alphard Black (ASTOF)
- Altered Destinies
- Aluria (TFJ)
- Always
- Always Second
- Alya (QOTH)
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- Amanda Abrams (Lord Caesar)
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- Amiel I of Nu-Cyrod (HTTE)
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- Amilanius's mother (DM)
- Amilanius (DM)
- Ammon Lightarrow (Reynoman)
- Amortality
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- Amy Tonks (MotHE)
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- And the World Stood Still
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- Andrew Potter, 5th Duke of Inverness (DM)
- Andromeda Tonks
- Andromeda Tonks: Story Time
- Andronicus Potter, 9th Duke of Inverness (DM)
- Andronikos III Palaiologos (DM)
- Angelat (Species) (HPR1)
- Angelic Choirs (BOTP)
- Angelina Johnson: Getting Out of Bed
- Angelina Johnson (Scopatore)
- Angelina Johnson (Some Well Thought Out Meddling)
- Angelina Johnson (Things Use to be in Harmony)
- Angelina Vanilladime (STW)
- Angelo Seven (Scopatore)
- Anger
- Anglo-Cyrodilic protocol (RS)
- Aniel III Ru (LOTW)
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- Aniel I Ru (LOTW)
- Animagus
- Animagus (Lord Caesar)
- Animagus Club (Lord Caesar)
- Anipheon (disambiguation)
- Anipheon IX (DM)
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- Anipheon X (DM)
- Ankylosaurus (Lord Caesar)
- Anna Grayson and the Order of Merlin
- Anna Winterbourne (HPMU)
- Annabelle's Hogwarts Adventure
- Annabelle Kelley (MWLL)
- Annalise Cullins (ARH)
- Anne Findlay (Kaaterskill Chronicles)
- Another Part of the Castle (1996) (short story)
- Anthony Davis (Pidoria)
- Anthony De Santa II (Scopatore)
- Anthro-Dragon (Lord Caesar)
- Anti-Wizard-Detecting Spell (PotterGrangerous)
- Antioch Peverell (Ajrand)
- Antipater (DOTE)
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- Antoinette Topaz (Lion’s Tale)
- Antonio (Reynoman)
- Antonius Potter, 4th Duke of Inverness (DM)
- Antonius Potter (PotterGrangerous)
- António Salazar (DM)
- Anuanth (EOTN)
- Apatosaurus (Lord Caesar)
- Apolline Delacour (Scopatore)
- Apparition Administration (Ajrand)
- Apples and Ravens
- Apples and Snakes
- Apples and Snakes (Trilogy)
- Appraiser of the Wayward Whims (DM)
- April Granger (TN)
- Aquila Malfoy (Vela)
- Arabella Larkin (SSK)
- Arabella Snape (PurpleGirl)
- Arabesque
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- Arcatar (disambiguation)
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- Arcedemus (WR)
- Archaeopteryx (Lord Caesar)
- Arcturus (Ajrand)
- Area 51 (Lord Caesar)
- Argent family (Raveela)
- Argentinian Council of Magic (Vincent Mackay)
- Ariabelle Durbridge (Mal-man)
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- Ariana Malfoy (Perfect Child Series)
- Ariel Black (Pleiades)
- Aries Black (Vela)
- Arithmancy (Bryona)
- Arkady Tvaichkolenko (XNDUIW Simon)
- Arkos (Ajrand)
- Arresto Momentum (spell)
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- Arron Durbridge (Mal-man)
- Artaxianate (GATS)
- Artaxias (GATS)
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- Artemis (Artemis Chronicles)
- Artemis Black (Pleiades)
- Artemis Black (Vela)
- Artemis Potter -Two Worlds Colide.
- Arthur Britannia (CaptainFlowerss)
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- Asmodeus Filius Dei (COE)
- Assassination of Malcolm Rothes (GATS)
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- Asta Lestrange (Clover Charms)
- Asteria Malfoy (The Eternal Wayfarer)
- Astoria Greengrass
- Astoria Greengrass (Sweets)
- Astoria Greengrass (TMotM)
- Astoria Malfoy (The Eternal Wayfarer)
- Astrophel Lupescu (HPR1)
- At the Hour
- Athanasia Bulstrode (Fandomtrash56)
- Atlantic Aquawyrm (Lord Caesar)
- Atlantis (Lion’s Tale)
- Attorlathe (WR)
- Audrey Galland's Wand (MA)
- Audrey Galland (MA)
- Audrey Weasley (Scopatore)
- Augusta Carrow (Scopatore)
- Augustus Ambrosius Pendragon (CaptainFlowerss)
- Augustus Apothecary (CaptainFlowerss)
- Augustus Crane (SB)
- Aurelia Zabini (Phoenix Blade)
- Auriga Sinistra (WR)
- Auro Formicia (Logo8th)
- Aurora Lestrange (Kokoa)
- Aurora Malfoy-Potter (WCHB)
- Aurore Galland (MA)
- Aury Blackmount (BarggotJ.C)
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