Girls' name · since 1942

Shelagh

Since 1942, U.S. Social Security records show 510 babies named Shelagh, peaking in 1950. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.

510
total births
1942–1999
years on record
1960s
peak decade
35%
born in that decade

Shelagh is not among the current top-ranked girls names; 510 have been recorded since 1942.

Shelagh has 510 recorded births among girls since 1942, per the U.S. Social Security Administration, though it falls outside today's most-used girls names, busiest in the 1960s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1942 to 1999.

  • 510 total births
  • 1942–1999 years on record
  • 1960s peak decade
  • 35% born in that decade

Data updated Jul 2026

The verdict

510 girls have been named Shelagh since 1942, peaking in the 1960s, last recorded in 1999.

510
total births
1942–1999
years on record
1960s
peak decade
35%
born in that decade
1960s
Peak decade

35% of everyone ever named Shelagh was born in this single decade.

1950
Single peak year

22 babies were named Shelagh in 1950 - its busiest year on record.

Shelagh's usage pattern, beyond the headline number

Splitting Shelagh's full recorded timeline at 1969, 40% of its total births fall in the more recent half of the record versus 60% in the earlier half -- the name was more prevalent in its earlier era than it is today. Its quietest year on record was 1946, with just 5 recorded births -- worth weighing against the 1950 peak of 22 to see the full range of the name's swing in popularity.

Shelagh at a glance

Last recorded 1999

Total births

510

Since 1942

58 years of records

Peak year

1950

22 births that year

Strongest decade: 1960s

Current rank

Unranked

Outside the modern top-1,000

As of 1999

Active since

1942

Recorded for 58 years

Last year on file: 1999

Shelagh popularity over time

Annual U.S. births registered with the Social Security Administration · 1942–1999

Last recorded 1999
Peak year (1950)
22
Annual births at peak, across 58 years of records
0510152025 194219501957196319691977198419901999 5

Shelagh by decade

Total births in each ten-year window, peak vs trough at a glance

1960s was Shelagh's strongest decade.

178 babies received the name during that ten-year window, about 35% of all-time use.

Shelagh births by decade

Total births in each ten-year window

births

What this shows Peak: 1960s at 178 births (35% of all-time use).

Source U.S. Social Security Administration · Baby Names As of July 2026

How Shelagh compares to similarly-sized names

Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 girls names closest to Shelagh's total volume

Shelagh vs 15 similarly-sized girls names

Shelagh vs 15 similarly-sized girls names Scatter plot of 16 data points. 0%10%20%30%40% 020406080 New & already peakedOld name, single-era peakNew & still diversifyingLong history, steady all along Years in SSA records % of total births in the single peak year Shelagh
Shelagh vs 15 similarly-sized girls names

Shelagh by state

Where Shelagh concentrates geographically, total births since 1942

Geographically diffuse
Top 1 states by recorded births for the name Shelagh
Rank State Visual share Births Share of total
#1 Massachusetts
34 6.7%
Massachusetts share of Shelagh's total US births 6.7%

34 of 510 births nationwide.

Frequently Asked Questions

How popular is the name Shelagh?
Since 1942, Social Security records show 510 babies named Shelagh. The most recent recorded year was 1999. Its busiest year on record was 1950, with 22 births.
When was Shelagh most popular?
Shelagh was most popular in the 1960s decade with 178 total births. The single peak year was 1950.
Where is Shelagh most popular?
The top states for the name Shelagh are Massachusetts (34 births).
How long has the name Shelagh been used?
The SSA has tracked Shelagh since 1942 -- 58 years through the most recent 1999 data.
What names are similar to Shelagh?
Names with a similar sound or spelling include Sheila, Sherry, Shelby, Shelly, and 4 more. These share a common prefix and are also used for girls.

What to do with Shelagh's data

  • Shelagh's decade-level peak was the 1960s (178 total births); usage has since declined to 38 in the 1990s -- if you're weighing a "classic revival" angle, the trend line argues against it.
  • Massachusetts records the most Shelaghs (34 births) -- see the full state breakdown if geography matters to your decision. Massachusetts names
  • 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.

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, 1942–1999 (ssa.gov/oact/babynames).

State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).

Cite this page

NameAlmanac Editorial. "Shelagh: Baby Name Since 1942 - 510 Births, Peak 1950." NameAlmanac. Accessed via https://namealmanac.com/name/shelagh. 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 Shelagh 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.