Kathlyne

Girls' name

Meaning not yet documented

Kathlyne has been given to 68 babies in the U.S. since 1914. It was used fewer than 5 times in 2025, so it doesn't appear in the latest year's list — today it's a genuinely uncommon pick. Its peak year was 1951, with 9 recorded.

Babies named Kathlyne, 1998

1 in 525,000

Kathlyne over time, 1880–2025

Girls
02.557.51018801900192019401960198020002020

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

How common is Kathlyne?

Kathlyne had fewer than 5 recorded uses in 2025, so these figures use 1998, the last year it was published.

Among all babies, 1998
1 in 525,000
7 of 3,677,189 births
Among girls only
1 in 252,000
<0.01% of girls
Rank, 1998
Unranked
Fewer than 5 uses
Coin-flip room size
364,120 kids
Even odds of a second one

Where Kathlyne sits on the popularity scale

Rarest published (5 a year)#1 — Olivia (13,544)

Chance at least one other child shares the name

If the other children were drawn at random from the 1998 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%
Class of 30Under 1%
Grade of 100Under 1%
School of 500Under 1%

Put another way: gather 364,120 children born in 1998 and it's an even bet that one of them is another Kathlyne. In a class of 30 the chance is Under 1%.

When Kathlynes were born

Half of everyone ever recorded as Kathlyne was born before 1950 — so the typical Kathlyne is around 75 today.

Median birth year
1950
About 75 years old
Biggest decade
1950s
38.2% of all use
Born in the last 25 years
10.3%
Spread across generations
Recorded since 1950
38
People you could plausibly meet
Choose a decade

1950s — 38.2% of all recorded uses (26).

Is Kathlyne rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago
—
Not ranked then
Rank vs 5 years ago
New entry
Not ranked then
Rank vs 10 years ago
—
Not ranked then
Births vs 10 years ago
—
Not published both years
Share of its own peak
0%
Peak was 1951 (9)
Years since peak
74
Years
Year-to-year steadiness
Volatile
30.4% average annual change
Best rank ever
#3,849
1951

Spellings of Kathlyne

Kathlyne is not the most common spelling — Kathryn is, with 66.7% against Kathlyne's <0.01%.

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Kathlyne around the world

Where Kathlyne ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

  • France
    1978–2021
    #7,228
    in 2021

Popularity data from Institut national de la statistique et des études économiques. INSEE data under Licence Ouverte / Etalab 2.0.

Kathlyne by the numbers

The raw record for each sex the name is used for.

As a girl's name

Rank in 2025
Unranked
Trend vs 5 yrs ago
—
Best rank ever
#3,849
1951
Peak year
1951
9 that year
First recorded
1914
Last recorded
1998
All-time count
68
Count in 2025
Under 5

Names similar to Kathlyne

Matched on shared beginnings and endings, similar length, and comparable popularity.

Sibling names for Kathlyne

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around Kathlyne