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Very Rare

Jefferi

A masculine name of English origin derived from Jeffrey, meaning "pledge of peace".

Name Census estimates that about 5 living Americans carry the first name Jefferi. The name is used almost exclusively for boys. The average person named Jefferi today is around 65 years old, and the year with the single highest number of Jefferi births was 1959 (6 babies).

This page is the full Name Census profile for Jefferi. Below you will find a gender breakdown showing how the name splits between male and female registrations, a year-by-year popularity chart stretching back to 1880, decade-level totals, the top US states for this name, its meaning and etymology, and a set of frequently asked questions with data-backed answers.

Key insights

  • Fewer than 100 living Americans are believed to carry the name Jefferi. It is among the rarest names in the SSA records.

People living today

5

~ 1 in 68,550,868 Americans

Peak year

1959

6 babies that year

Average age

65

years old

1959 SSA rank

#3,782

Tracked since 1959

Popularity

Jefferi: popularity over time

Babies born per year

02356

Decades

Jefferi by decade

The table below breaks the full SSA timeline into ten-year windows. Each row shows how many male and female babies were given the name Jefferi during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.

DecadeMaleFemaleTotal
1950s606

Origin

Meaning and history of Jefferi

The name Jefferi is believed to have originated from the Old French name "Geoffroi," which in turn is derived from the Germanic name "Godefrid," meaning "peace" and "peace-lover." This name traces its roots back to the 6th century in Western Europe.

The earliest recorded use of the name Jefferi can be found in medieval England and France, where it was a popular name among the nobility and upper classes. One of the earliest known bearers of this name was Jefferi de Mandeville, an Anglo-Norman nobleman who lived in the late 11th century and was a powerful landowner in Essex, England.

In the 12th century, the name Jefferi was borne by Jefferi de Villehardouin, a French historian and author of the chronicle "The Conquest of Constantinople." He was a notable participant in the Fourth Crusade and played a crucial role in the establishment of the Latin Empire of Constantinople.

Another notable figure with the name Jefferi was Jefferi Chaucer, the famous English poet and author of "The Canterbury Tales." Chaucer, who lived from around 1343 to 1400, is considered one of the greatest poets of the Middle English period and is often referred to as the "Father of English Literature."

In the 16th century, Jefferi Fenton was an English writer and translator who was highly regarded for his translations of works by various French and Italian authors. He lived from around 1539 to 1608 and was known for his literary talent and contributions to the English Renaissance.

During the 17th century, Jefferi Hudson was a famous English dwarf who served as a courtier in the court of Queen Henrietta Maria, the wife of King Charles I. Hudson, who lived from 1619 to 1682, was known for his wit and charm, and his unusual stature made him a subject of curiosity and fascination at the royal court.

These are just a few examples of notable historical figures who bore the name Jefferi, highlighting its long and varied history across different cultures and time periods.

People

Jefferi + last name combinations

How many people share a full name with Jefferi as the first name? Click a combination below to see the estimate, or search any pairing.

Related

Other names starting with J

Other first names starting with J with a similar number of bearers.

FAQ

Jefferi: questions and answers

How many people in the U.S. are named Jefferi?

Name Census puts the figure at roughly 5 living Americans. We arrive at this by taking every SSA birth registration for Jefferi going back to 1880 and adjusting each cohort for expected survival using CDC actuarial life tables. The result is an age-weighted living-bearer count, not a raw birth total. That works out to about 1 in 68,550,868 US residents.

Is Jefferi a common name?

We classify Jefferi as "Very Rare". It ranks above 18.2% of all first names in the SSA dataset by living bearers. Across the full history of the data, 6 babies have been registered with this name.

When was Jefferi most popular?

The single biggest year for Jefferi was 1959, when 6 babies received the name. The fact that the average living Jefferi is about 65 years old gives you a rough sense of which era contributed the most bearers who are still alive today.

Is Jefferi a male name?

Yes, 100.0% of people registered as Jefferi in the SSA data are male. You can see the full per-sex comparison in the gender distribution section above, which includes the latest year rank, birth count, and peak year for each sex.

Where does this data come from?

First-name figures come from the Social Security Administration's national baby name files, which cover every name on a birth certificate from 1880 to 2024. Living-bearer estimates layer in CDC actuarial life tables broken out by sex to account for mortality. The population baseline (342,754,338) is the Census Bureau's latest national estimate. You can read the full calculation on our methodology page.

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Jefferi

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