Recorded 1910–2010 Girls' name Peak 1925 365 births

Rubby — girls' name

365 babies named Rubby in U.S. Social Security records since 1910, with the highest year being 1925. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1910s421920s841930s781940s541950s161960s51970s51980s111990s332000s302010s7
1920s
Peak decade

23% of everyone ever named Rubby was born in this single decade.

1925
Single peak year

11 babies were named Rubby in 1925 — its busiest year on record.

What the Data Says About Rubby

The Social Security Administration has registered 365 babies named Rubby between 1910 and 2010, spanning 101 consecutive years of U.S. birth records. As a girl's name, Rubby currently falls outside the top 1,000 girls' names for 2010. The name reached its historical peak in 1925, when 11 babies received it in a single year.

Decade-level aggregation shows that Rubby performed strongest in the 1920s, accumulating 84 births during that ten-year window. Across the 11 decades of recorded activity, Rubby shows a clear decline from its mid-century high. Geographically, the name is most concentrated in Mississippi, which accounts for 6 births — the largest state-level total in the dataset — followed by . In total, SSA state-level files list Rubby in 1 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Rubby in our reference dataset. These figures derive from SSA's annual national and state-level name files, which include any name appearing at least five times in a given year or state-year; names below that threshold are suppressed for privacy and therefore excluded from the totals shown here. The 365 total represents a lower bound — actual usage may be higher in years or states where the count fell below the disclosure floor. This page is provided for informational and research purposes only and does not constitute personal, legal, or naming advice.

Rubby at a glance

Last recorded 2010

Total births

365

Since 1910

101 years of records

Peak year

1925

11 births that year

Strongest decade: 1920s

Current rank

Unranked

Outside the modern top-1,000

As of 2010

Active since

1910

Recorded for 101 years

Last year on file: 2010

Rubby popularity over time

Annual U.S. births registered with the Social Security Administration · 2010–1910

Last recorded 2010
Peak year (1925)
11
Annual births at peak — across 101 years of records
4681012 201019961963194519371930192319161910 5

Rubby by decade

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

Peak: 1920s
Peak decade
1920s
84 births that decade — 23% of Rubby's all-time total
1910s421920s841930s781940s541950s161960s51970s51980s111990s332000s302010s7

Rubby by state

Where Rubby concentrates geographically — total births since 1910

Geographically diffuse
Top 1 states by recorded births for the name Rubby
Rank State Visual share Births Share of total
#1 Mississippi
6 1.6%
Mississippi share of Rubby's total US births 1.6%

6 of 365 births nationwide.

Frequently Asked Questions

How popular is the name Rubby?
365 babies have been named Rubby since 1910. It was last recorded in 2010. The peak year was 1925 with 11 births.
When was Rubby most popular?
Rubby was most popular in the 1920s decade with 84 total births. The single peak year was 1925.
Where is Rubby most popular?
The top states for the name Rubby are Mississippi (6 births).
How long has the name Rubby been used?
Rubby has been recorded in Social Security data since 1910, spanning 101 years of data through 2010.
What names are similar to Rubby?
Names with a similar sound or spelling include Ruby, Rubi, Rubye, Rubie, and 4 more. These share a common prefix and are also used for girls.

Data Sources

Data as of 2024. Source: U.S. Social Security Administration (SSA).

Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, 1910–2010 (ssa.gov/oact/babynames). National-level data includes all names with 5 or more occurrences in a given year.

State-level: Source: U.S. Social Security Administration, Baby Names — State-Level Files (namesbystate.zip). Includes all names with 5 or more occurrences per state per year; rarer names are excluded for privacy.