Londyn vs Sid

Baby Name Comparison — 2026

Londyn

Boy #4,728 Most Popular 2 Syllables

"from Londinium, fort on the Thames"

Origin: Celtic/Latin

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Boy #4,636 Most Popular 1 Syllable

"wide meadow, wide island"

Origin: Old English

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Londyn Rank #4,728

Sid Rank #4,636

Sid is more popular, ranked #4636 vs #4728 for Londyn.

Is Londyn or Sid more popular?

Sid is more popular, ranked #4636 compared to Londyn at #4728 in the United States.

What do Londyn and Sid mean?

Londyn means "from Londinium, fort on the Thames" (Celtic/Latin origin). Sid means "wide meadow, wide island" (Old English origin).

Are Londyn and Sid boy or girl names?

Londyn is primarily a boy name. Sid is primarily a boy name.