Rheo — boys' name
11 babies named Rheo in U.S. Social Security records since 1918, with the highest year being 2021. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
The verdict
11 boys have been named Rheo since 1918, peaking in the 2020s, last recorded in 2021.
- 11
- total births
- 1918–2021
- years on record
- 2020s
- peak decade
- 55%
- born in that decade
55% of everyone ever named Rheo was born in this single decade.
6 babies were named Rheo in 2021 — its busiest year on record.
What the Data Says About Rheo
The Social Security Administration has registered 11 babies named Rheo between 1918 and 2021, spanning 104 consecutive years of U.S. birth records. As a boy's name, Rheo currently falls outside the top 1,000 boys' names for 2021. The name reached its historical peak in 2021, when 6 babies received it in a single year.
Decade-level aggregation shows that Rheo performed strongest in the 2020s, accumulating 6 births during that ten-year window. Across the 2 decades of recorded activity, Rheo shows a stable profile with only moderate drift from its peak decade.
No etymological entry is currently available for Rheo 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 11 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.
Rheo at a glance
Last recorded 2021Peak year
Current rank
Active since
Rheo popularity over time
Annual U.S. births registered with the Social Security Administration · 2021–1918
- Peak year (2021)
- 6
- Annual births at peak — across 104 years of records
No longer in the modern top-1000 — last recorded 2021.
11 total births across 104 years of SSA records. Peaked in 2021 with 6 births in a single year.
Rheo by decade
Total births in each ten-year window — peak vs trough at a glance
- Peak decade
- 2020s
- 6 births that decade — 55% of Rheo's all-time total
Rheo decade highlights
- Peak decade 6 births
- Runner-up 5 births
- Decades tracked with recorded births
2020s was Rheo's strongest decade
6 babies received the name during that ten-year window — about 55% of all-time use.
Frequently Asked Questions
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Keep exploring Rheo
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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, 1918–2021 (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.