Birth Chart and Horoscope of 1999 births
- Abdallah Ali Mohamed
- Abdulkadir Said Ahmed
- Abolfazl Akasheh
- Adam Alilet
- Adam B
- Adittia Gigis
- Adriano (footballer, born 1999)
- Adrián Villalobos
- Ahsaas Channa
- Aitana (singer)
- Aitzaz Hasan
- Aksel Aktas
- Alanoud Al-Zabrey
- Alberto Alari
- Alberto Fernández (footballer, born 1999)
- Alberto Soro
- Alessandro Vinícius
- Alessio Castro-Montes
- Alex (footballer, born 1999)
- Alex Balfanz
- Alexander (footballer, born 1999)
- Alexander Alvarado
- Alexander Ammitzbøll
- Alexandre (footballer, born 1999)
- Alexandre Tam
- Alfons Amade
- Alice Tai
- Alisson dos Santos Correa
- Amarildo de Souza
- Amina Abdi Rabar
- Andre Garcia (actor)
- Andrey Alshanik
- André Anderson (footballer)
- Anel Ahmedhodžić
- Angela Addison
- Anthony Alfredo
- Anthony Scully
- Antonio Gandy-Golden
- Aparna Sharma
- Arash Dajliri
- Arsen Adamov
- Atakan Akkaynak
- Augusto Aguirre
- Balázs Adolf
- Ben Aitchison
- Ben Allison (cricketer)
- Biplu Ahmed
- Bobby Adekanye
- Burak Ağaoğlu
- Cam Akers
- Catarina Amado
- Chovanie Amatkarijo
- Christian Amoah
- Christos Albanis (footballer, born 1999)
- Christos Kountouriotis
- Daniil Agureyev
- Danny Amos (footballer, born 1999)
- David Alba
- David Henríquez Mandiola
- Dennis Adeniran
- Diarmuid Barron
- Dmitri Aliev
- Emiliano Ancheta
- Emily Keener
- Esraa Alaseel
- Eylon Almog
- Faizal Khan
- Felix Agu
- Finn Allen
- Firza Andika
- Flo Allen (footballer)
- Francis Amuzu
- Frederik Alves
- Germán Cano
- Ghifari Vaiz Adhitya
- Gifty Acheampong
- Gina Akpe-Moses
- Giorgos Agiotis
- Gulzoda Amirova
- Hana Hayes
- Hirohide Adachi
- Hisanori Yasuda
- Hugo Andersson (footballer, born 1999)
- Husniddin Aliqulov
- Hussain Al Quraish
- Ibrahim Aliyev
- Ibrahima Diallo (footballer, born 1999)
- Isaac Alarcón
- Isah Aliyu
- Isak Amundsen
- Izer Aliu
- Jack Sims
- Jahkari Furbert
- Jaime Alvarado
- Jared Anderson (boxer)
- Jaret Anderson-Dolan
- Jeremy Aguirre
- Jessia Islam
- Jessica Benites
- Jo Adell
- Joel Amartey
- Jonathan Amon
- Jordy Alcívar
- Jose Eduardo Martinez Alcantara
- Joseph Adah
- Joseph Akomadi
- José Reyes (Honduran footballer)
- João Bruno
- Julius Tapert
- Kalidou Sidibé
- Karim Zeroual
- Kertu Ly Alnek
- Kevin Álvarez (footballer, born 1999)
- Kieran Buchanan
- Kingsley Agbodike
- Kota Sakurai
- Ladislav Almási
- Lea van Acken
- Linn Ahlborg
- Linus Andersson
- Linus Weber
- Lucas Ambrogio
- Lucy Akoth
- Luis Ángel Morales
- Luka Racic
- Mabia Akhter
- Magnus Kofod Andersen
- Marcelo Allende
- Matheus Augusto
- Matis Louvel
- Mattéo Ahlinvi
- Matías Córdoba (footballer, born 1994)
- Mercy Airo
- Michael Adams (presenter)
- Migo Adecer
- Mihai Aioani
- Mikey Anderson
- Minami Kato
- Mingus Reedus
- Miriam Aguirre
- Mizuki Ando
- Mohammad Reza Azadi
- Monalysa Alcântara
- Moritz Adam
- Murat Akpınar
- Nabil Alioui
- Naitoa Ah Kuoi
- Nemanja Celic
- Nicolás Acevedo
- Nicolás Andereggen
- Nina Amir
- Niti Shah
- Nuraly Alip
- Oluwaseun Adegbola
- Oscar Allen (footballer)
- Payam Bouyeri
- Peter-Lee Vassell
- Phillip Omondi
- Pontus Almqvist
- Princess Alexandra of Hanover (born 1999)
- Princess of Hanover (1999) Alexandra
- Rajiv Dhall
- Raul Aguilera
- Raz Shlomo
- Ricardo Álvarez Casanova
- River Alexander
- Roby Andika
- Rod Wave
- Rory Gates
- Ross Sykes
- Rowan Milnes
- Safet Alic
- Sajjad Aghaei
- Samuel Lino
- Sarjano Khalid
- Serafina Eyene
- Setrak Akopyan
- Shakil Ahmed (sport shooter)
- Sharlene San Pedro
- Simay Barlas
- SinB
- Soichi Hashimoto
- Solomon Kindley
- Stiwart Acuña
- Stuart Allan
- Syahrian Abimanyu
- Tania Oktaviani Kusumah
- Tarryn Aiken
- Tedo Abzhandadze
- Thomas Allan (footballer, born 1999)
- Tom Ale
- Tomás Alarcón
- Turki Al-Ammar
- Tyler Adams
- Victor Amos
- Victoria Acevedo
- Yaimil Medina
- Yanis Ammour
- Yasyn Khamid
- Yorgan Agblemagnon