- Adama (1980 alternate)
- Adama (Majestic Studios)
- Adama (OS)
- Adama (RDM)
- Adama (RH)
- Adama (TOS)
- Adama (TOS-DE alternate)
- Adama (TOS-RH)
- Adama (TOS alternate)
- Adama (TOS alternate reality)
- Adama (alternate)
- Adama (battlestar)
- Adama Glare
- Adama Maneuver
- Adamant
- Adamarama
- Adamas
- Adamastache
- Adams
- Adar
- Adar (OS)
- Adar (RDM)
- Adar (TOS)
- Adar (TOS alternate)
- Adena
- Admiral
- Admiral Adama
- Admiral Cain
- Admiral Corman
- Admiral Nagala
- Adonis
- Adrasteia
- Adrastia
- Adrian
- Adrian Bauer
- Adrian Holmes
- Adrian Hughes
- Adriano Batista
- Adriatic
- Adrien
- Adrien Bauer
- Adrien Dorval
- Adrien Hughes
- Adrienne Chan
- Adulteress 58
- Adulteress 58 (alternate)
- Advanced Raider
- Advertisements
- Advertisements for Galactica 1980
- Advertisements for the Original Series
- Aedina
- Aelotol
- Aerelon
- Aerelon Gazette
- Aerian
- Aerian Administration Hub
- Aerian Express
- Aerian datanet
- Aerian merchant code
- Aeriana
- Aeries
- Aeries (1880)
- Aerilon
- Aerilon (alternate)
- Aerilon Crystal
- Aerilon Gazette
- Aerilon Lines
- AerynSun44 (alternate)
- Aether
- Aether (1880)
- Aether (TRS)
- Aether message
- Aetherdrive
- Aetherprison
- Aethership
- Aetherships
- Aetherspace
- Aft Damage Control
- Aft damage control
- Agathon
- Agent cylon
- Aggie (alternate)
- Aggie Moreland
- Aggie Moreland (alternate)
- Agro
- Agro-3
- Agro-worker
- Agro Ship
- Agro Ship 9
- Agro Ship Nine
- Agro colony
- Agro ship
- Agro ships
- Agron colony
- Aidan Dee
- Air
- Air Force Colonel
- Air Force Major
- Air Force Sergeant
- Air Force Special Detachment One
- Air Force Viper
- Air Group
- Air Wing
- Airfoil deflection
- Airlock
- Airlock D
- Akabolans
- Akbar
- Akins Transluminal Orbital Manufacturing Facility
- Akt Skruchy
- Al
- Al (alternate)
- Alain Chanoine
- Alain Rivard
- Alan
- Alan Adelberg
- Alan C. Peterson
- Alan Cole
- Alan Hughes
- Alan Hughes (alternate)
- Alan J. Levi
- Alan Kroeker
- Alan Levi
- Alan Peterson
- Alan Wong
- Alan Yu
- Alana Husband
- Alastair Thorne
- Alastair Thorne (alternate)
- Albert Paulsen
- Alcohol
- Aldarium belt
- Ale
- Aleks
- Aleks Paunovic
- Aleph
- Alert Fighters
- Alert fighters
- Alessandra Olivia Toreson
- Alessandra Toreson
- Alessandra Torresani
- Alessandro Juliani
- Alex
- Alex "Crashdown" Quartararo
- Alex Arsenault
- Alex Boxman
- Alex Ferris
- Alex Green
- Alex Hyde-White
- Alex Quartararo
- Alex Quartararo (alternate)
- Alex Singh
- Alex Zahara
- Alexa Cain
- Alexa Cain (alternate)
- Alexa Flores
- Alexander
- Alexander Chen
- Alexander Chen (alternate)
- Alexandra Thomas
- Alexei
- Alfred Mortinson
- Algae
- Algae mash
- Algae planet
- Algae protein bar
- Algea planet
- Alien
- Aliens
- Alisander Asiel
- Alisen Down
- Alison Matthews
- Alistair Thorne
- All Along The Watchtower
- All Along the Watch Tower
- All Things Past and Present
- All this has happened before
- All this has happened before. All this will happen again.
- Allan
- Allan Cole
- Allan Kroeker
- Allan Miller
- Allan Nowart
- Allan Nowart (alternate)
- Alliance
- Alliance (alternate)
- Alliance Leader
- Alliance Member
- Allison
- Allison Warnyca
- Alon
- Alon (alternate)
- Alonso Oyarzun
- Alonzo
- Alpert
- Alpha
- Alpha Centauri
- Alpha Shuttle
- Alpha Six quadrant
- Alphad
- Alternate reality
- Althea Erasmus
- Alvo
- Alyssa Minniss
- Amanda
- Amanda-A
- Amanda Graystone
- Amanda Graystone/gallery
- Amanda Graystone/ru:Аманда Грэйстоун
- Amanda Graystone (alternate)
- Amanda Plummer
- Amanda Tanner
- Amante
- Amarak
- Amazon Unbox
- Amber Rothwell
- Ambrosa
- Ambrosia
- Ambush at Cimtar (TOS-DE alternate)
- Ambush by the Super Basestar
- Amduatey
- Amok Time
- Amorak
- Amorak (alternate)
- Amp
- Amphead
- Ampheads
- Amy
- Amy Ciupak Lalonde
- Amy Lalonde
- AnEFX
- An Analytical Guide to Television's Battlestar Galactica
- Ana Alicia
- Ana Free
- Analy
- Analy "Feline" Amante
- Analy Amante
- Anastasia Dualla
- Anastasia Dualla (alternate)
- Anastasia Dualla Adama
- Anders
- Anderson
- Andor
- Andreas Phaulkon
- Andrew
- Andrew Boxman
- Andrew Dunbar
- Andrew McIlroy
- Andrew Seklir
- Andrewson
- Android
- Andromidus
- Andromidus (alternate)
- Andromus
- Andromus (alternate)
- Andy
- Andy Chamberlayne
- Andy Guerdat
- Andy Seklir
- Aneke
- Angel
- Angela
- Angela (alternate)
- Angela (disambiguation)
- Angela Moore
- Angels
- Anita Torrance
- Ann Royall
- Anna
- Anna Bazinet
- Anna Galvin
- Anne
- Anne (disambiguation)
- Anne Adama
- Anne Adama/jp:アン・アダマ
- Anne Cofell
- Anne Cofell Saunders
- Anne Collins
- Anne Jeffreys
- Anne Lockhart
- Annie
- Annihilation!
- Annihilator
- Annihilators
- Answaw
- Answaw (alternate)
- Answered Questions from Season 1
- Answered Questions from Season 1 (RDM)
- Answered Questions from Season 2
- Answered Questions from Season 2 (RDM)
- Answered Questions from Season 3
- Answered Questions from Season 4
- Answered Questions from Season 4 (RDM)
- Ant
- Antebellum Centurion
- Anthony
- Anthony Carriero
- Anthony DeLongis
- Anthony De Longis
- Anthony Figurski
- Anthony Figursky
- Anthony Hemingway
- Anthony Redman
- Anthony St. John
- Anthony de Longis
- Anti-Cylon technologies
- Anti-assault batteries
- Anti-assault battery
- Anti-gravity ship
- Anti-radiation medication
- Antibiotics
- Antila
- Antilla
- Antiscientific period
- Anton
- Anton (TOS-DE alternate)
- Antony Holland
- Anubis
- Anumanda "Spender" Salas
- Anumanda Salas
- Anvil
- Ape and Essence
- Aphrodite
- Apollo
- Apollo's Journey 1
- Apollo's Journey 2
- Apollo's Journey 3
- Apollo's War
- Apollo's medallion
- Apollo, Lord of Kobol
- Apollo (1880)
- Apollo (RDM)
- Apollo (RH)
- Apollo (TOS)
- Apollo (TOS)/Alternate
- Apollo (TOS-DE)
- Apollo (TOS-DE alternate)
- Apollo (TOS-RH)
- Apollo (TOS alternate)
- Apollo (TOS alternate reality)
- Apollo (alternate)
- Apollo Park
- Apollo University
- Apotheosis
- Apotheosis (episode)