Sid vs Theodore

Baby Name Comparison — 2026

Sid

Boy #4,636 Most Popular 1 Syllable

Meaning

"wide meadow, wide island"

Origin: Old English

Cultural Roots

English American British

Quick Stats

Popularity Rank
#4,636
Total SSA Count
22
Syllables
1
Formality
Casual

Playground Safety Score

✓ All Clear
Full profile for Sid →

Popularity Comparison

Sid Rank #4,636
Theodore Rank #4

Theodore is more popular, ranked #4 vs #4636 for Sid.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Sid ___

  • Sid James
  • Sid Thomas
  • Sid Allen
  • Sid Ray
  • Sid Lee
  • Sid Wayne

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 Sid

Ned Fred Ted Gus Lou

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 Sid or Theodore more popular?

Theodore is more popular, ranked #4 compared to Sid at #4636 in the United States.

What do Sid and Theodore mean?

Sid means "wide meadow, wide island" (Old English origin). Theodore means "divine gift" (Greek origin).

Are Sid and Theodore boy or girl names?

Sid is primarily a boy name. Theodore is primarily a boy name.

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← Full profile: Sid ← Full profile: Theodore Browse all baby names