Total births
29
Girls' name · since 1916
Kathalyn
29 babies named Kathalyn in U.S. Social Security records since 1916, with the highest year being 1945. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- 29
- total births
- 1916–1954
- years on record
- 1940s
- peak decade
- 45%
- born in that decade
Kathalyn sits outside today's top ranks for girls, with 29 recorded since 1916.
Social Security Administration records show Kathalyn recorded 29 times among girls since 1916, though it doesn't currently rank among the most-used girls names, peaking in the 1940s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1916 to 1954.
- 29 total births
- 1916–1954 years on record
- 1940s peak decade
- 45% born in that decade
Data updated Jul 2026
The verdict
29 girls have been named Kathalyn since 1916, peaking in the 1940s, last recorded in 1954.
- 29
- total births
- 1916–1954
- years on record
- 1940s
- peak decade
- 45%
- born in that decade
1940s
Peak decade
45% of everyone ever named Kathalyn was born in this single decade.
1945
Single peak year
7 babies were named Kathalyn in 1945 - its busiest year on record.
Kathalyn's usage pattern, beyond the headline number
Kathalyn splits its recorded history at 1948: 59% of all births land in the more recent half, 41% in the earlier half, an evenly balanced pattern over time. The single quietest year was 1916 (5 births) -- compare that against the 1945 peak of 7 for a sense of just how much the name's popularity has swung.
Kathalyn at a glance
Last recorded 1954Peak year
1945
Current rank
Unranked
Active since
1916
Kathalyn popularity over time
Annual U.S. births registered with the Social Security Administration · 1916–1954
- Peak year (1945)
- 7
- Annual births at peak, across 39 years of records
Kathalyn by decade
Total births in each ten-year window, peak vs trough at a glance
1940s was Kathalyn's strongest decade.
13 babies received the name during that ten-year window, about 45% of all-time use.
Kathalyn births by decade
Total births in each ten-year window
- 1910s 5
1910s
5 births
- 1940s
1940s
13 births
- 1950s
1950s
11 births
What this shows Peak: 1940s at 13 births (45% of all-time use).
Frequently Asked Questions
How popular is the name Kathalyn? ▼
Kathalyn has been given to 29 babies in the U.S. since 1916, according to SSA data. Its last appearance in the data was 1954. 7 babies were born in 1945, its single highest year.
When was Kathalyn most popular? ▼
Kathalyn was most popular in the 1940s decade with 13 total births. The single peak year was 1945.
How long has the name Kathalyn been used? ▼
Records for Kathalyn go back to 1916, giving 39 years of history through 1954.
What names are similar to Kathalyn? ▼
Names with a similar sound or spelling include Kathleen, Katherine, Kathryn, Kathy, and 4 more. These share a common prefix and are also used for girls.
What to do with Kathalyn's data
- Kathalyn's usage has stayed within range of its 1940s decade-level peak (13 total births) through the 1950s (11) -- a comparatively stable name, not a fading trend.
- Weighing it against an alternative? Put two names side by side. Compare names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Kathalyn
Nearby Names Like Kathalyn
Names with a similar sound, spelling, or feel to Kathalyn
Kathleen Girl
#1099 713,645 births
Katherine Girl
#175 650,926 births
Kathryn Girl
#714 455,423 births
Kathy Girl
#2699 334,131 births
Katie Girl
#576 241,285 births
Compare Kathalyn side by side: Kathalyn vs Kathleen Kathalyn vs Katherine Kathalyn vs Kathryn
Related Names
Names with a similar number of total births
Data Sources
Data as of July 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1916–1954 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Kathalyn: Baby Name Since 1916 - 29 Births, Peak 1945." NameAlmanac. Accessed via https://namealmanac.com/name/kathalyn. Licensed CC BY-SA 4.0.
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Kathalyn draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of July 2026.