Siar vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Siar Rank #6,591
Theodore Rank #4

Theodore is more popular, ranked #4 vs #6591 for Siar.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Siar ___

  • Siar James
  • Siar Patrick
  • Siar Finn
  • Siar Eoin
  • Siar Cormac
  • Siar Oisín

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 Siar

Ciar Fionn Aoife Niamh Rónán

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 Siar or Theodore more popular?

Theodore is more popular, ranked #4 compared to Siar at #6591 in the United States.

What do Siar and Theodore mean?

Siar means "westward, to the west" (Irish Gaelic origin). Theodore means "divine gift" (Greek origin).

Are Siar and Theodore boy or girl names?

Siar is primarily a boy name. Theodore is primarily a boy name.

More Comparisons

Theodore vs Siar Siar vs Zayveon Siar vs Mina Siar vs Jamauri Siar vs Francois
← Full profile: Siar ← Full profile: Theodore Browse all baby names