- 100 Minutes
- 100 Seconds Encounter
- 2010 FIFA World Cup Shootout
- 24-hour Rule
- 3 A.M.
- 3 Way Rats
- 4G
- 4Gee Natt
- 4th Lucky Spot Competition
- 7 Deadly Sins
- 8-Pack
- ABS-CBN
- AJ Burman
- AJ Odudu
- AV Ravi
- A Bit Tipsy
- Aadarsh Balakrishna
- Aadhi Lokesh
- Aadi Adeal Amjad
- Aafke Feenstra
- Aajeedh Khalique
- Aaliya Siddiqui
- Aamna Malick
- Aarav Kizar
- Aari Arjunan
- Aaron Allard-Morgan
- Aaron Benton
- Aaron Frew
- Aaron Koenigs
- Aaron Troschke
- Aarti Solanki
- Aarya Babbar
- Aarya Jadhao
- Aaryn Gries
- Aarón Reyes
- Aashika Bhatia
- Aashka Goradia
- Aastad Kale
- Aata Sandeep
- Aavishkar Darwhekar
- Abbas Kazmi
- Abbie Kamara
- Abby Plaatjies
- Abby Tiale Abigail
- Abdel Yasmin Sellou
- Abdu Rozik
- Abdul Hakim
- Abdullah Ejaz
- Abdullah Yahya
- Abhai Naveen
- Abhijeet Kelkar
- Abhijeet Sawant
- Abhijit Bichukale
- Abhinav Shukla
- Abhinav Vishwanathan
- Abhinay Vaddi
- Abhirami Suresh
- Abhirami Venkatachalam
- Abhishek Jayadeep
- Abhishek Kumar
- Abhishek Malhan
- Abhishek Sreekumar
- Abi Kassem
- Abijeet Duddala
- Abinaya Shree
- Abishek Raaja
- Abu Malik
- Abz Love Breen
- Acacia Mcopela
- Ace Khumalo
- Aces
- Achi Natan
- Achilles Samain
- Achim Löbig
- Achiri Victor
- Acke Pettersson
- Ad Visser
- Ada Baqoshi
- Adag Mbayong
- Adam Alayof
- Adam Jasinski
- Adam Kelly
- Adam Pasha
- Adam Pike
- Adam Poch
- Adam Wolke
- Adams Ngwenya
- Adans Peres
- Adara Molinero
- Additional Housemates
- Ade Herawati
- Adekunle Olopade
- Adel Bespalov
- Adel Elseri
- Adela Smajić
- Adelajda Xhamani
- Adele Roberts
- Adelina Banakieva-Ivanova
- Adem Rapanj
- Aden Theobald
- Adi Leon
- Adi Neumann
- Adi Reddy
- Adi Villaespesa
- Adish Vaidya
- Aditi Chakraborty
- Aditi Govitrikar
- Aditi Mistry
- Aditi Rai
- Aditya Om
- Aditya Yanamandra
- Adjoa Mensah
- Admir Mujabašić
- Adnaan Shaikh
- Adnan Hussain
- Adnand (Big Brother Albania 9 Housemate)
- Adoney John
- Adorkables
- Adri Rogaqi & Iliriana Sadriu
- Adria Klein
- Adrian (Romania 1 Contestant)
- Adrian Podde
- Adrian Rohrmüller
- Adriana Fernandez
- Adriana Morales
- Adriana Peluso
- Adriana Sant'anna
- Adriana Volpe
- Adriana Xenides
- Adriano de Castro
- Adrienn (VV5 Housemate)
- Adrienn Horváth
- Adrilles Jorge
- Adrián Creus
- Adrián López
- Adrián Marcelo
- Adrián Tello
- Adrián Uribe
- Adélia Soares
- Afa (Cameroon2 Housemate)
- Afi Oubaibra
- Afonso Leitão
- Afrie Afdillah
- Afroditi Gerokonstanti
- Afsana Khan
- Aga Shady
- Agha Talal
- Agnes Arabela Marques
- Agnethe (Big Brother Norge 3 Housemate)
- Agnieszka Broda
- Agnieszka Frykowska
- Agnieszka Koziołek
- Agnieszka Lorek
- Agnieszka Podgórska
- Agnieszka Raczyńska
- Agostina Spinelli
- Aguasantas Vilches
- Agustina Quirós
- Agustinho Mendonça
- Agustín (Spain 9 Housemate)
- Agustín Belforte
- Agustín Fernández
- Agustín Flores
- Agustín Guardis
- Agustín Pappa
- Aharon Tze'etzashvili
- Ahmed Aghil
- Ahmed Tas
- Ahneeka Onyii
- Ahsaan Qureshi
- Aicha NK
- Aida Sharizadeh-Abdi
- Aida Troka
- Aida Yespica
- Ailah Antopina
- Ailín Bourren
- Aina Solano
- Ainelén Thevenon
- Ainett Stephens
- Ainhoa Pareja
- Ainsley
- Airton Cabral
- Aisha McKinnon
- Aishu ADS
- Aishwarya Dutta
- Aishwarya Pissay
- Aishwarya Sharma
- Aishwarya Shindogi
- Aisleyne Horgan-Wallace
- Aissatou (BB Denmark 5 Housemate)
- Aiswarya Suresh
- Aixa Abasto
- Aizan Perez
- Aizyl Tandugon
- Ajay Kathurvar
- Ajaz Khan
- Ajs Nigrutin
- Ak-rame Adechokan
- Akanksha Puri
- Akanksha Sharma
- Akasa Singh
- Akash Dadlani
- Akashdeep Saigal
- Akeem Griffiths
- Akere Nerisa
- Akere Sexoo
- Akhil Marar
- Akhil Nair
- Akhil Sarthak
- Aki Abiodun
- Aki Reittu
- Akie Poblete
- Akin Johnson
- Akshara Reddy
- Akshara Singh
- Akshata Kuki
- Akshatha Pandavapura
- Akshay Kelkar
- Akshay Waghmare
- Akshaya Udayakumar
- Aksinia Chenkova
- Akul Balaji
- Ala'a Omar
- Alain Rochette
- Alan Conceição
- Alan Lopes
- Alan Miramotos
- Alan Passos
- Alan Pierre Miranda
- Alan Possamai
- Alan Simone
- Alan Wangsa
- Alan Zulcovsky
- Alana Dante
- Alana Lliteras
- Alane Dias
- Alasandra Johnson
- Alatzne Mateos
- Alba Carrillo
- Alba Sabada
- Alba Vukaj
- Alba Çobaj
- Albena Vuleva
- Albert Infante
- Albert Sosnowski
- Alberto Baiocco
- Alberto De Pisis
- Alberto Maroto
- Alberto Mezzetti
- Alberto Pimentel
- Alberto Scrivano
- Albi Nako
- Albie Casiño
- Albulena Demaku
- Alby Markaj
- Alda D'Eusanio
- Alden Hadžikarić
- Aldo Montano
- Aldo Pucci
- Aldred Gatchalian
- Aldrico Amando
- Alec Beall
- Alec Dungo
- Aleck Bovick
- Aleck Iñigo
- Aleida Núñez
- Aleisha Campbell
- Aleisha Cowcher
- Alejandra González
- Alejandra Martinez
- Alejandra Martínez
- Alejandra Pinzón
- Alejandra Procuna
- Alejandra Ávalos
- Alejandro Abad
- Alejandro Agell
- Alejandro Albalá
- Alejandro Garrido
- Alejandro Ibarra
- Alejandro Iglesias
- Alejandro Nieto
- Alejandro Ocasiones
- Alejandro Restuccia
- Alejandro Solís
- Alek Sanda
- Alekhya Harika
- Alekosz Nagy
- Aleks & Vladi Dimitrovi
- Aleks Vehkala
- Aleksandar Aleksandrov
- Aleksandar Jovanović
- Aleksandar Kocić
- Aleksandar Neradin
- Aleksandar Ralević
- Aleksandra Apostolova
- Aleksandra Balawender
- Aleksandra Bogdanska
- Aleksandra Dimanovska
- Aleksandra Monroe
- Aleksandra Vrbajac
- Aleksandra Đukić
- Aleksi Hakanen
- Aleksi Valavuori
- Alen Macinić
- Aleska Génesis
- Aless Gibaja
- Alessandra Begliomini
- Alessandra Micciche
- Alessandra Zannin
- Alessandro Basciano
- Alessandro Calabrese
- Alessandro Capone
- Alessandro Cecchi Paone
- Alessandro Comune
- Alessandro Livi
- Alessandro Lukacs
- Alessandro Marino
- Alessandro Tersigni
- Alessia-Millane Herren
- Alessia Giovagnoli
- Alessia Macari
- Alessia Prete
- Alessia Traverso
- Alessio Falsone
- Alex Albert
- Alex Anselmuccio
- Alex Asogwa
- Alex Belli
- Alex Biney
- Alex Caniggia
- Alex Cannon
- Alex Chege
- Alex Christie
- Alex Coladonato
- Alex Ferreira
- Alex Flores
- Alex Gonzaga
- Alex Holi
- Alex Hytönen
- Alex Jolig
- Alex Manzizila
- Alex McCristal
- Alex Nad
- Alex Nilsson
- Alex Ow