Simon is pure and simple (not in the nursery rhyme sense), and an appealingly genuine Old and New Testament name that's not overused. These factors make Simon a stylish yet classic choice. 
 
In the Bible, Simon was the second son of Jacob and Leah and the original name of Saint Peter, as well as the name of several New Testament figures. Historically, Simon Bolivar is known as The Liberator of Latin America.
 

The New Testament spelling of Simon (rather than Simeon) was probably influenced by the unrelated Greek name Simon, meaning "flat-nosed". The Hebrew Shim'on or Simeon means "He has heard". Later, it was also conflated with the Old English name Sigemund ("victory-protection") — so there's an element of several origins and meanings in the name.

 Simon was one of the more appealing characters in Lord of the Flies, then became part of the British invasion of names that hit U.S. shores along with the Beatles. Other recent notable Simons include Simon Templar, aka The Saint; Simon Cowell, snarky judge on The X Factor; Simon Le Bon, lead singer of Duran Duran; and Simon Baker, Australian-born star of The Mentalist. 

 Simon is currently very popular in several European countries, including Austria, Denmark, France, Sweden, Switzerland and Belgium.

Simon

Classic and elegant but with boyish charm, Theodore has become hit name in recent years, vaulting into the US Top 10 in 2021 for the first time ever and into the Top 5 in 2024. A favorite in English speaking countries, it also ranks highly across the UK and Ireland, and in Canada, New Zealand, and Australia. 

Friendly nickname Theo may be responsible for some of that, though there are plenty of baby boys given Theo as their full name too. Add their numbers together along with those for Mateo and Teo, and they hands-down become the Number 1 boys' name.

Theodore and Mateo are far from interchangeable names, for sure, and some Theodores are called Teddy....or Theodore. But we predict an overwhelming number of little boys called Theo or Teo on American playgrounds over the coming years.

Theodore is a derivative of the Latin Theodorus, a variation of the Greek name Theodōros. The components are from the Greek words theos, meaning "God," and dōron, meaning "gift," giving Theodore the meaning "God-given" or "gift of God." Names with similar origins include Theodora, Dorothy, and Dorothea.
 
When Theodore Roosevelt took office in 1901, the name Theodore was in the Top 40 <a href="https://nameberry.com/boys-names">boy names</a>, with Teds and Teddys everywhere. After some damaging stereotypes—the chubby Chipmunk Theodore and Beaver Cleaver's real name—Theodore went into a decline, from which it has definitely made a recovery, thanks in part to the popular and likable nickname Theo.
 Theodore has been the choice of several celebrities, including Ivanka Trump, Bryce Dallas Howard, Natascha McElhone, and Ali Larter, not to mention being the fictional son of Christian and Ana in Fifty Shades of Grey.
 The name has a distinguished history. In addition to being presidential, it was borne by novelist Dreiser, poet Roethke, and French painter Gericault, and it was the first name (spelled Theodor) of Dr. Seuss.
 Among the well-known Teds, baseball's Williams and musician Nugent were born Theodore, but Ted Turner was christened Robert, and Ted Kennedy and Ted Danson were originally Edward.
 The beloved character Laurie in Little Women was named Theodore Laurence.

Theodore

Cressida's list "Vintage boys that are out of the US top 200" of 2 great name ideas: Simon - Theodore!

Vintage boys that are out of the US top 200

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