Birth Chart and Horoscope of January 21 births
- Aaron Grundy
- Adam Krzysztofiak
- Adi Soffer
- Alan Jones (footballer, born 1951)
- Alessandro Bernardini
- Alexander Dercho
- Alexander Klöpping
- Alfonso Moreno Morán
- Amal Athulathmudali
- Ana Maria Magalhães
- Ana Moura (badminton)
- Andre Ewell
- Andrew Browne (rugby union)
- Andrew Forde
- Andrew J. Richards
- Anna Barsukova (model)
- Anoja Weerasinghe
- Anthony Sichi
- Arif Karaoğlan
- Armand Gega
- Artur Dmitriev
- Ashley Sippala
- Ashton Eaton
- Aslan Darabayev
- Atilio Herrera
- Ángel Mena
- Benoît Tardieu
- Bill Grimsey
- Billy Ocean
- Bobby Houston (footballer, born 1952)
- Brandon Crawford
- Brian Partridge
- Bruno Pauletto
- Carlos Louis Fallas
- Charles (footballer, born 1954)
- Charles Legget
- Charles Thomas (basketball, born 1986)
- Constance Laux
- Cornelius Greene
- Cui Kai (footballer)
- Dale A. Drozd
- Danielli Pereira da Silva
- Darren Forsyth
- Darren Helm
- David Marusek
- David Peach
- Dominic Oppong
- Dominik Roels
- Don Droege
- Eddie McAshan
- Elie Tahari
- Elizabeth Erny Foote
- Felipe Neto
- Felipe Yáñez
- Ferenc Obreczán
- Forrest Gander
- Frank A. Jenssen
- Frank Pineda
- François Boutin
- Garry Madders
- Gary Locke
- Gerry Forrest
- Ghazwan Jassem
- Glaiza de Castro
- Glenn Remick
- Goran Paracki
- Greg Martin
- Greg Wren
- Hans Montag
- Henrico Drost
- Henry Azra
- Hubert Pawłowski
- Ineya
- Irwin Cohen
- Isabelle Nanty
- Iñigo Pérez
- Jacob Green
- Jamel Saihi
- James Lawson (footballer)
- Javi López
- Jay-R Siaboc
- Jeb Stuart (writer)
- Jeff Franklin
- Jeroen Drost
- Jesús Ancer Rodríguez
- Jim Troy (ice hockey)
- Joe Howe (footballer)
- Joe Parsons
- John Early (comedian)
- John Mercer (American politician)
- Jonathan Quick
- Joseph R. Tanner
- Joseph F. Cotton
- João Gomes Júnior
- Judit Kéri-Novák
- Julie Christensen
- Kamal Anis
- Karl Wallenda
- Kei Nakano
- Ken Yamamura
- Kevin Kratz
- Kirin J. Callinan
- Klaus Meyer (rower)
- Kris Stephens
- Kyle Nix
- Lachlan Norris
- Leandro Brasília
- Leslie Hoffman
- Liam Feeney
- Lidiia Soloviova
- Lola Flores
- Louis Moolman
- Luigina Bissoli
- Marc W. Butler
- Marco Antonio Xicoténcatl
- Marie-Arlette Carlotti
- Marion Becker
- Martin Donovan (screenwriter)
- Masoud Rayegan
- Matteo Merini
- Matthew Lopez
- Michael S. Malone
- Michalis Prodromou
- Mickaël Gaffoor
- Miguel Aguilar Obando
- Mike Keating (ice hockey)
- Mike Smithson (baseball)
- Mike Taylor (basketball)
- Mohamad Al Hasan
- Mohammed Showqi Al-Islambouli
- Mulopo Kudimbana
- Neil Shepard
- Nello Musumeci
- Nemia Kenatale
- Niki Østergaard
- Norbert Pallua
- Norden Tenzing Bhutia
- Norman Botton
- Ozu Moreira
- Óscar Vílchez
- Pablo Caballero González
- Park Tae-min
- Patricia Kihoro
- Paul Allen
- Penny Severns
- Percy Howard
- Peter Fleming (tennis)
- Peter Ritzen
- Peter Woods (footballer)
- Petre Purima
- Peyton Hillis
- Phil Greatwich
- Phil Loadholt
- Plácido Domingo
- Popo (footballer, born 1988)
- Preston Claiborne
- Richie Hawkyard
- Richie Ranno
- Rick Dowswell
- Robby Benson
- Robert Gray (footballer, born 1951)
- Robert S. Nelsen
- Robin Wikman
- Roger Joe
- Roger W. Stoller
- Ron Anderson (ice hockey, born 1950)
- Rosemary Shrager
- Roy Tunks
- Ryszard Słomski
- Sadegh Nojouki
- Saeid Daghighi
- Sergei Ogorodnikov
- Shaun Keeling
- Shota Horie
- Skip Brown
- Sushant Singh Rajput
- Tajhon Mailata
- Talaat Youssef
- Tales Cerdeira
- Thomas Franke
- Thomas Vikström
- Thomas de Maizière
- Tipper Newton
- Tom Urbani
- Tony Potrac
- Tony Ridler
- Trey Kramer
- Urvesh Patel
- Vanessa Hessler
- Veselin Nanev
- Vincenzo Lombardo
- Walt Richardson
- Wayne Matle
- Werner Grissmann
- Will Johnson (soccer)
- Willie Gates
- Włodzimierz Mucha
- Yuri Yuryevich Lebedev
- Yury Astravukh
- Yvon Dumont
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More categories: Ministers of Sport of Israel, Eurovision Song Contest entrants for Spain, Escapees from Italian detention, Eurodance musicians, Swiss psychiatrists, Olympic boxers of the United States Virgin Islands, Women trade unionists, NK Ivančica players, British magazine publishers (people), Belizean women writers