Kai vs Olivia

Baby Name Comparison — 2026

Popularity Comparison

Kai Rank #76
Olivia Rank #1

Olivia is more popular, ranked #1 vs #76 for Kai.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Kai ___

  • Kai James
  • Kai Alexander
  • Kai Michael
  • Kai Robert
  • Kai William
  • Kai Thomas

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 Kai

Zara Nova Mila Leo Finn

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 Kai or Olivia more popular?

Olivia is more popular, ranked #1 compared to Kai at #76 in the United States.

What do Kai and Olivia mean?

Kai means "sea" (Hawaiian origin). Olivia means "olive tree" (Latin origin).

Are Kai and Olivia boy or girl names?

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

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← Full profile: Kai ← Full profile: Olivia Browse all baby names