Sir

A boys’ name with no widely documented etymology — one syllable, given to 54 babies a year in the US.

Babies a year
54
the US, 2017
Rarity
Very rare
among names in use
US popularity
—
outside the top 1000
UK popularity
—
outside the ONS list

Sir by the numbers

Sir was given to 54 American babies in 2017, the most recent full year we hold.

Its American peak was 58 babies in 2014, making it a 2010s name.

What we can tell you about Sir

Not every name has a meaning to trace. Plenty are coined rather than inherited — invented outright, blended from two names, or respelled from an older one — and where we cannot find an etymology we can stand behind, we would rather say so than make one up. What follows comes from the birth records themselves.

Spelled almost the same

Other names in the records within a letter or two of Sir. Close spellings are not always related names, but they are usually worth seeing together.

  • Sirefather, lord99 in the US (2017)
  • Sidwide meadow; a form of Sidney19 in England and Wales (2025)
  • Siar27 in England and Wales (2025)
  • Sirr8 in the US (2017)
  • Sair6 in the US (2017)
  • Si6 in the US (2017)

Sounds like Sir

Names that are said the same way as Sir, however they are written. Sounding alike does not mean they share a history.

  • Cire21 in the US (2017)
  • Syre13 in the US (2017)
  • Syer7 in the US (2017)
  • Syere6 in the US (2017)

Names about as common as Sir

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