Jacilyn
Feminine variation of Jacqueline meaning "may God protect" or "supplanter".
Name Census estimates that about 370 living Americans carry the first name Jacilyn. The name is used almost exclusively for girls. The average person named Jacilyn today is around 34 years old, and the year with the single highest number of Jacilyn births was 1984 (22 babies).
This page is the full Name Census profile for Jacilyn. 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.
People living today
370
~ 1 in 926,363 Americans
Peak year
1984
22 babies that year
Average age
34
years old
2021 SSA rank
#16,217
Tracked since 1974
Popularity
Jacilyn: popularity over time
The SSA tracks Jacilyn from the 1970s through to the 2020s, spanning 6 decades of birth certificate data. The biggest single decade for the name was the 1980s, with 150 total registrations. Usage has dropped considerably from its 1980s peak. The most recent decade brought in only a fraction of the registrations that the name once attracted.
Babies born per year
Decades
Jacilyn 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 Jacilyn during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
Origin
Meaning and history of Jacilyn
The name Jacilyn is a modern English variant of the French name Jacqueline, which is a feminine form of the male name Jacques. The name Jacques is derived from the Hebrew name Jacob, meaning "supplanter" or "one who follows."
Jacqueline was first popularized in Medieval France, particularly among the nobility and upper classes. It is believed to have been introduced to France by the Crusaders who encountered the name Jacob during their travels to the Holy Land.
One of the earliest recorded uses of the name Jacqueline can be found in the 13th-century French epic poem "Roman de la Rose," where a character named Jacqueline is mentioned. However, it was not until the 15th century that the name gained widespread popularity in France.
Historically, one of the most notable figures named Jacqueline was Jacqueline of Hainault (1401-1436), the Countess of Holland, Hainault, and Zeeland. She played a significant role in the political affairs of the Low Countries during the early 15th century.
Another prominent figure was Jacqueline de Bueil (1516-1561), a French noblewoman known for her literary works and her influence on the French Renaissance. She was also a member of the famous literary circle of the Pléiade.
In the 20th century, Jacqueline Kennedy Onassis (1929-1994), the wife of former U.S. President John F. Kennedy, was arguably the most famous bearer of the name. Her style and elegance made her an iconic figure in American culture.
Jacqueline Cochran (1906-1980) was an American pioneer aviator and one of the most influential women in the field of aviation. She was the first woman to break the sound barrier and held numerous altitude and speed records.
Jacilyn, as a variant spelling of Jacqueline, emerged in the late 20th century and has gained popularity in English-speaking countries, particularly in the United States. While not as common as the traditional spelling, it offers a unique and modern twist on the classic French name.
People
Jacilyn + last name combinations
How many people share a full name with Jacilyn 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
Jacilyn: questions and answers
How many people in the U.S. are named Jacilyn?
Name Census puts the figure at roughly 370 living Americans. We arrive at this by taking every SSA birth registration for Jacilyn 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 926,363 US residents.
Is Jacilyn a common name?
We classify Jacilyn as "Very Rare". It ranks above 81.5% of all first names in the SSA dataset by living bearers. Across the full history of the data, 386 babies have been registered with this name.
When was Jacilyn most popular?
The single biggest year for Jacilyn was 1984, when 22 babies received the name. The fact that the average living Jacilyn is about 34 years old gives you a rough sense of which era contributed the most bearers who are still alive today.
Is Jacilyn a female name?
Yes, 100.0% of people registered as Jacilyn in the SSA data are female. 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.