Alasdair vs Theodore

Baby Name Comparison — 2026

Popularity Comparison

Alasdair Rank #3,737
Theodore Rank #4

Theodore is more popular, ranked #4 vs #3737 for Alasdair.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Alasdair ___

  • Alasdair James
  • Alasdair Iain
  • Alasdair Fergus
  • Alasdair Ross
  • Alasdair Duncan
  • Alasdair Grant

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 Alasdair

Hamish Callum Finlay Catriona Fiona

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 Alasdair or Theodore more popular?

Theodore is more popular, ranked #4 compared to Alasdair at #3737 in the United States.

What do Alasdair and Theodore mean?

Alasdair means "defender of men" (Greek via Scottish Gaelic origin). Theodore means "divine gift" (Greek origin).

Are Alasdair and Theodore boy or girl names?

Alasdair is primarily a boy name. Theodore is primarily a boy name.

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