Llewelyn vs Sid

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

Llewelyn Rank #4,551
Sid Rank #4,636

Llewelyn is more popular, ranked #4551 vs #4636 for Sid.

Popularity Over Time

Historical US popularity rank — lower number means more popular.

Middle Name Pairings

Llewelyn ___

  • Llewelyn Rhys
  • Llewelyn Owen
  • Llewelyn James
  • Llewelyn Gareth
  • Llewelyn Tudor
  • Llewelyn Evan

Sid ___

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

Sibling Name Ideas

Names that pair well as siblings.

If you choose Llewelyn

Rhiannon Gwyneth Rhodri Cerys Emrys

If you choose Sid

Ned Fred Ted Gus Lou

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 Llewelyn or Sid more popular?

Llewelyn is more popular, ranked #4551 compared to Sid at #4636 in the United States.

What do Llewelyn and Sid mean?

Llewelyn means "leader, ruler" (Welsh llyw origin). Sid means "wide meadow, wide island" (Old English origin).

Are Llewelyn and Sid boy or girl names?

Llewelyn is primarily a boy name. Sid is primarily a boy name.

More Comparisons

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