Rex

Latin

"king"

Rex Origin and Meaning

The name Rex is a boy's name of Latin origin meaning "king".

Now that many dogs are named Max, it's safe to use this sleek, solid, regal name again for your child. And with the charm of its final x, its regal meaning, and its offbeat simplicity, Rex is definitely one to consider.

Coldplay's Will Champion used it for his twin son, and Natascha McElhone gave her little boy the doubly cool appellation Rex Coltrane, and Niki Taylor — intentionally or not — gave her son the full name of the British My Fair Lady star, Rex Harrison (who was actually christened Reginald). And quite fittingly, Rex is name of a toy T-Rex in Toy Story.

Other options: the French version Regis or the literal King.

Rex Rank in US Top 1000

# 722 in the US

Rex Rank in Nameberry Top 1000

# 445 on Nameberry

Popularity of the name Rex

• 722 US 2023
• 445 Nameberry 2025
• 440 Future 2028
• 197 England 2023
• 56 Dogs 2022

20 Names Similar to Rex

These 20 names were selected by our users that were looking for other names like Rex.

• Rocco
• Bo
• Ozzy
• Frankie
• Jules
• Cliff
• Perry
• Baxter
• Monty
• Sonny
• Quincy
• Iggy
• Ziggy
• Buck
• Dexter
• Flint
• Murphy
• Benji
• Toby
• Huck

Famous People Named Rex

• Reginald Carey "Rex" Harrison English actor
• Rex Burkhead American NFL football player
• Rex Daniel Grossman American NFL football player
• Rex Hadnot American NFL football player
• Rex Murphy Canadian newscaster
• Rex Goudie Canadian Singer
• Rex Ashley Ryan American NFL football Coach
• Rex Maynard Linn American actor
• Rex McNicol Robbins American character actor
• Rex Lee American actor
• Rex Allen American actor
• Rex Darwin Davis first director of the U.S. ATF agency
• Rex Wayne Tillerson American Secretary of State and CEO of Exxon
• Rex Todhunter Stout American detective novelist
• Rex Russell (b. 2003) son of actress Hetty Baynes and director Ken Russell
• Rex Champion (b. 2008) son of drummer Will Champion of Coldplay; twin of sister Juno Champion
• Rex Coltrane Kelly (b. 2009) son of actress Natascha McElhone and Martin Kelly
• Rex William Wickham (b. 2010) son of English author Sophie Kinsella
• Rex Harrison Lamar (b. 2011) son of model Niki Taylor and Burney Lamar
• Rex (b. 2015) son of actress Lucy Punch

The name Rex in Pop Culture

• Rex Manning character in the movie Empire Records
• Rex DiMera character on American soap opera Days of Our Lives
• Rex Britten character on TV's "Awake"
• Rex aka Racer X character in anime Speed Racer
• Rex dinosaur in the Toy Story films
• Rex Van de Kamp character on TV's "Desperate Housewives"
• Captain Rex character in 2008 animated television series "Star Wars: The Clone Wars"
• Rex Kyubi character in video game 'Ace Attorney'
• Reginald "Rex" Bateman main character in G. A. Henty's, With the Allies to Pekin
• Rex The Tyrannosaurus Rex character in "We're Back! A Dinosaur's Story"
• Rex Powers Robbie Shapiro's puppet/dummy on TV's "Victorious"
• Rex Splode character in Invincible comics
• Oedipus Rex Latin name for the play by Sophocles
• Rex Mason (aka Metamorpho) character in the DC Universe
• Rex Salazar main character in 2010 animated television series "Generator Rex"