Fidelis vs Olivia

Baby Name Comparison — 2026

Popularity Comparison

Fidelis Rank #26,900
Olivia Rank #1

Olivia is more popular, ranked #1 vs #26900 for Fidelis.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Fidelis ___

No pairings available yet.

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 Fidelis

No sibling data available yet.

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 Fidelis or Olivia more popular?

Olivia is more popular, ranked #1 compared to Fidelis at #26900 in the United States.

What do Fidelis and Olivia mean?

Olivia means "olive tree" (Latin origin).

Are Fidelis and Olivia boy or girl names?

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

More Comparisons

Olivia vs Fidelis Fidelis vs Chalil Fidelis vs Alireza Fidelis vs Smauel Fidelis vs Afrim
← Full profile: Fidelis ← Full profile: Olivia Browse all baby names