Birth Chart and Horoscope of March 31 births
- Abdul Ilah Khatib
- Adelheid Schulz
- Ahmad Zakii Anwar
- Akemi Takada
- Alan Duncan
- Alessandro Salvatore
- Allison Falk
- Amaury Bischoff
- Andrea Bordeaux
- Andreas Dober
- Andrzej Osipów
- András Adorján
- Anikó Kéry
- Anna Finocchiaro
- Antoine Ntsimi
- Aridane Santana
- Armando Romero Rosales
- Armond Hill
- Arthur D. Levinson
- Ágio Pereira
- Beatrisa Liang
- Benedikt Kohl
- Bozhidar Mitrev
- Brenda Gilmore
- Brendon Nash
- Brian Duncan
- Brody Eldridge
- Byron Webster
- Carey Green
- Carl Dickinson
- Carlos Sadness
- Casey Kozlowski
- Catherine Bertini
- Charles Gauci
- Cho Yong-tae
- Christopher Walken
- Collin Cameron
- Craig Dolby
- Craig Masback
- Craig McGinlay
- Dave Philpotts
- DeAndre Liggins
- Dean Richards (reporter)
- Denis Ignashin
- Dennis DuVal
- Dennis Kamakahi
- Des Bulpin
- Dorin Dickerson
- Doron Gepner
- Dumitru Seul
- Dénes Gulyás
- Eakkanut Kongket
- Ed Marinaro
- Edit Miklós
- Edward A. Rice Jr.
- Egoitz García
- Ehud Banai
- Ekta Chowdhry
- Eliézio Santos Santana
- Eric Lampe
- Ernie Adams (American football)
- Eros Pisano
- Esther Cheah
- Felice Prevete
- Fernando Pellegrino
- Fernando Pimentel
- Fiorenzo Aliverti
- Frank Gomez
- François Brottes
- Fred Sekyere
- Félix Noguera
- Gawie Visagie
- Gord Lane
- Graham Astley
- Guillaume Chiche
- Haldhar Nag
- Hallie Foote
- Henry Spinetti
- Hugo Ayala
- JAE E
- Jacques Bascou
- James Dunnigan (politician)
- James King (rugby union, born 1986)
- Jean-François Caujolle
- Jean-Philip Chabot
- Jesse Dudas
- Jonathan Artura
- Joseph Carl Shaw
- Joshua Obademi
- José Luis Díaz Vázquez
- Juan Ricardo Roldán
- Justin Braun (soccer)
- József Andrusch
- K. G. Lakshminarayan
- Karl Hudspith
- Karl Klug
- Kazuko Kōri
- Kent Jensen
- Kevin Cogan
- Khairul Helmi Johari
- Kim Min-ki
- Kirill Starkov
- Kjell Sundvall
- Koneru Humpy
- Kåre Björkstrand
- Laima Vaikule
- Laura Gorgerino
- Laurence A. Kirwan
- Leo Buscaglia
- Letika Saran
- Li Weimiao
- Louisa Porogovska
- Mansour Tanhaei
- Marc McClure
- Maria Micșa
- Mark DeSaulnier
- Mark R. Hornak
- Martin Schöffmann
- Matthew Collins (Welsh footballer)
- Melanie Gebhardt
- Mia De Vits
- Mick Henderson
- Mickael Charvet
- Mikaelar Whippy
- Mike Davison
- Mike Niles
- Mike Rafter
- Mohammad Reza Barari
- Monty Veazey
- Murray Watts (rugby player)
- Nathaniel Knight-Percival
- Nicola Pistoia
- Nikki Franke
- Noah Cato
- Nuno Borges
- Odaïr Fortes
- Opio Toure
- Patrick G. Forrester
- Patrick Henry (murderer)
- Paula Bieler
- Pedro Marques (footballer, born 1988)
- Peter Bourjos
- Peter Creed
- Peter Silberman
- Phil Curtis
- R. Nataraj
- Raúl Cabanas
- Rene Portland
- Richard Amery
- Richard Cannings (British Columbia politician)
- Rob Fishman
- Robert Genuario
- Robert Vance
- Robin Pecknold
- Robin Sadler
- Rod Hauser
- Rolf Jobst
- Romeo Filipović
- Ron Hillyard
- Ronny Bruckner
- Ronny Kriwat
- Rosa María Avilés Nájera
- Salvatore Testa
- Sanad Sharahili
- Sandra Morgen
- Sergey Khoretsky
- Seven Lions
- Sharon Carry
- Shelley Shannon
- Shyam Singh Yadav
- Simon Dickie
- Simon Westraadt
- Skip Rimsza
- Sophie Li
- Steve Seskin
- Susan B. Landau
- The Child of Lov
- Thomas De Corte
- Thomas Jeneary
- Tibor Bodnár
- Tibor Végh
- Tim Cowlishaw
- Tim Vleminckx
- Todor Atanasov
- Tom Hausman
- Tony Brock
- Tony Testa
- Vanessa del Rio
- Vic Mercredi
- Vicente Boluda
- Victor Gresev
- Virginia Patrone
- Vladimir Pimonov
- Wang Yue
- Winston Venable
- Wolfgang Bubenik
- Yasin Anwar
- Yoon Kyun-sang
- Yoshifumi Kondō
- Zenon de Souza Farias