Marlo vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Marlo Rank #1,696
Theodore Rank #4

Theodore is more popular, ranked #4 vs #1696 for Marlo.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Marlo ___

  • Marlo James
  • Marlo Ray
  • Marlo Lee
  • Marlo Finn
  • Marlo West

Theodore ___

  • Theodore James
  • Theodore William
  • Theodore Alexander
  • Theodore John
  • Theodore Henry
  • Theodore Arthur

Sibling Name Ideas

Names that pair well as siblings.

If you choose Marlo

Arlo Harlow Cora Marlowe Beckett

If you choose Theodore

Olivia Charlotte Amelia Eleanor Oliver

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 Marlo or Theodore more popular?

Theodore is more popular, ranked #4 compared to Marlo at #1696 in the United States.

What do Marlo and Theodore mean?

Marlo means "remnants of the lake" (Old English origin). Theodore means "divine gift" (Greek origin).

Are Marlo and Theodore boy or girl names?

Marlo is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

Theodore vs Marlo Marlo vs Karmelo Marlo vs Jareth Marlo vs Percival Marlo vs Namari
← Full profile: Marlo ← Full profile: Theodore Browse all baby names