NameCensus.

UK boy's name

Sir

An honorific title of respect used to address men of rank or authority.

For 2026, the newest official UK baby-name figures on this page are from 2020. That release is the current official benchmark rather than a forecast.

Sir is a boy's name in the UK records. People looking for Sir popularity in 2026 should use the latest official release, which is 2020 in this profile. In that release it ranked #3848, with 4 babies registered with the name. Its strongest year in the published records was 2006, with 4 births.

This profile covers 20 England and Wales registrations across 6 recorded years from 2004 to 2020. The figures come from ONS England and Wales, so the page is a view of published baby-name registrations rather than a forecast or a live count of people using the name today.

The latest count is about 100% of the recorded peak, which gives a quick read on how the name has moved since its high point.

We estimate that about 20 living people in the UK are called Sir. This uses published birth registrations from England and Wales, Scotland and Northern Ireland, then applies ONS national life tables to estimate how many are likely still alive. It does not forecast extra births for 2021 or 2026.

Key insights

  • Sir ranked #3848 for boys in England and Wales in 2020, with 4 registrations.
  • The name peaked in 2006, when 4 boys were registered as Sir.
  • About 20 living people in the UK are estimated to have Sir as a first name, after adjusting past birth registrations with ONS life tables.

Latest rank (E&W)

#3848

2020

Births in 2020

4

Latest year

Peak year

2006

4 births

Estimated living

20

2026

Meaning

What does Sir mean?

The given name Sir is derived from the Old French word "sire," which in turn originated from the Vulgar Latin "senior," meaning an elder or a person of higher rank or authority. The term gained prominence in medieval Europe, particularly in French-speaking regions, where it was used as a title of respect and honor.

Sir was initially a term of address for men of nobility, such as knights, barons, and lords. It signified their elevated social status and served as a mark of distinction. Over time, the term evolved and became a more general honorific used to address men of significant authority or accomplishment, regardless of their noble lineage.

The earliest recorded use of Sir as a title can be traced back to the 12th century, when it appeared in various literary works, legal documents, and official correspondence. In the medieval period, Sir was often accompanied by the individual's name or title, as in "Sir John" or "Sir Knight."

One of the most famous historical figures associated with the name Sir is Sir Lancelot, the legendary knight of King Arthur's Round Table. Lancelot's character first appeared in the 12th-century French romance "Lancelot, the Knight of the Cart" by Chrétien de Troyes and became a prominent figure in Arthurian literature.

Another notable bearer of the name Sir is Sir Galahad, the purest of the Knights of the Round Table in Arthurian legend. Galahad was the son of Sir Lancelot and was destined to achieve the quest for the Holy Grail, a sacred object in medieval literature.

In the 14th century, Sir Geoffrey Chaucer, the renowned English poet and author, gained fame for his literary works, including "The Canterbury Tales." He is often referred to as the "Father of English Literature" and is considered one of the greatest poets of the Middle Ages.

During the Renaissance period, Sir Thomas More, an English lawyer, scholar, and statesman, rose to prominence. He served as Lord Chancellor under King Henry VIII and is known for his work "Utopia," a fictional account of an idealized island society. Sir Thomas More was canonized by the Catholic Church in 1935.

In the 16th century, Sir Walter Raleigh, an English writer, poet, soldier, and explorer, gained renown for his exploits and contributions to the English Renaissance. He was a prominent figure during the reign of Queen Elizabeth I and is remembered for his efforts in establishing the first English colony in North America, known as the "Lost Colony of Roanoke."

These are just a few examples of prominent historical figures who bore the name Sir, a title that has been associated with nobility, honor, and distinction throughout the ages.

Sourced from namecensus.com.

Popularity

Sir over time

The chart below shows babies named Sir registered in England and Wales in the years where the name appears in the published records, from 2004 to 2020. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.

For Sir, the clearest high point is 2006. The latest England and Wales figure is 4 births in 2020, compared with 4 at the peak.

Babies born per year

Sir
01234200420122020

Decades

Sir by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Sir was a short-lived spike or a name that stayed in regular use. Average rank is calculated only from years where a published rank exists.

Decade Average rank Total births Years covered
2020s #3848 4 1
2010s #4805 3 1
2000s #3950 13 4

Related

Names similar to Sir

FAQ

Sir: questions and answers

How popular is the name Sir in the UK right now?

In 2020, Sir was ranked #3848 for boys in England and Wales, with 4 births registered.

When was Sir most popular?

The peak year on record was 2006, with 4 babies registered as Sir in England and Wales.

What is the meaning and origin of Sir?

An honorific title of respect used to address men of rank or authority.

How many people are called Sir in the UK?

A total of 20 babies have been registered as Sir across the 6 years of ONS England & Wales records shown here.

Which records is this page based on?

The England and Wales timeline uses ONS baby-name records. Scotland figures come from NRS and Northern Ireland figures come from NISRA. Counts are registrations in published baby-name files. The living estimate uses those birth registrations with ONS national life tables.