Guillermo vs Olivia

Baby Name Comparison — 2026

Guillermo

Boy #833 Most Popular 3 Syllables

Meaning

"resolute protector"

Origin: Old High German wil (will) + helm (protection)

Cultural Roots

Spanish Latin American Filipino Portuguese

Quick Stats

Popularity Rank
#833
Total SSA Count
297
Syllables
3
Formality
Formal
Nicknames
Memo, Guille, Willy

Playground Safety Score

✓ All Clear
Full profile for Guillermo →

Popularity Comparison

Guillermo Rank #833
Olivia Rank #1

Olivia is more popular, ranked #1 vs #833 for Guillermo.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Guillermo ___

  • Guillermo Alejandro
  • Guillermo Antonio
  • Guillermo Eduardo
  • Guillermo Rafael
  • Guillermo Miguel
  • Guillermo Carlos

Olivia ___

  • Olivia Rose
  • Olivia Grace
  • Olivia Jane
  • Olivia Mae
  • Olivia Claire
  • Olivia Jade

Sibling Name Ideas

Names that pair well as siblings.

If you choose Guillermo

Fernando Ricardo Alejandra Lucia Isabella

If you choose Olivia

Liam Noah Charlotte Emma Sophia

Which Name Fits Your Family?

Answer 3 quick questions and we'll help you decide.

1. Which style feels more like your family?

Frequently Asked Questions

Is Guillermo or Olivia more popular?

Olivia is more popular, ranked #1 compared to Guillermo at #833 in the United States.

What do Guillermo and Olivia mean?

Guillermo means "resolute protector" (Old High German wil (will) + helm (protection) origin). Olivia means "olive tree" (Latin origin).

Are Guillermo and Olivia boy or girl names?

Guillermo is primarily a boy name. Olivia is primarily a girl name.

More Comparisons

Olivia vs Guillermo Guillermo vs Neil Guillermo vs Waylen Guillermo vs Rudy Guillermo vs Benicio
← Full profile: Guillermo ← Full profile: Olivia Browse all baby names