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2025 data, released 8 May 2026

Rui

Rui was the 2672nd most popular name for boys in 2025, given to 49 babies. Its best year was 1971, when it ranked 2105th; the most babies were born in 2024 (62). Over the last ten years it has moved up 2,348 places. More babies were named Rui in the 2020s than in any other decade.

Meaning Not yet researched how we research meanings

Rank in 2025
#2,672 boys, up 965 places since 2020
Babies in 2025
49boys
Girls and boys
17% girls, 83% boys2021–2025
Peak year
202462 babies
Total since 1880
972babies recorded

Rui popularity since 1880

0255075100 1900192019401960198020002020
GirlsBoys Babies per year, US, from Social Security records. Years with fewer than 5 babies show as zero.
YearRank (girls)Rank (boys)Babies (girls)Babies (boys)
2025#9,981#2,6721049
2020#13,217#3,637730
2010—#6,632—13
2000—#8,951—7
1990—#5,728—9
1980—#3,072—15
1970————
1960————
1950————
1940————
1930————
1920————
1910————
1900————
1890————
1880————

How popular is Rui, counting every spelling?

Rui has no other common spelling that sounds the same.

How many kids will share the name Rui?

49 of the 3,606,400 babies born in the US in 2025 were named Rui (0.01 per 1,000 births). For a boy named Rui born in 2025, the chance that another child with the same name is in a class of 20 children the same age is under 1 in 50. If every grade liked the name as much as the 2025 babies do, only about one elementary school in 171 (of 430 pupils) would have a child named Rui.

Chance of another Rui in a class of 20under 1 in 50US, born 2025
Most likely inWashingtonunder 1 in 50 (2024)

Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.

How old are people named Rui?

About 900 people born in the US named Rui are alive today, with a median age of 16; half are between 5 and 39. That makes Rui mostly worn by children and young adults.

0–910–1920–2930–3940–4950–5960–6970–7980–8990+
Estimated people alive in the US with the name, by age, mid-2026. The darker bar holds the median age.

Babies given the name each year (SSA) times the share of that birth year still alive (SSA life tables). Counts people born in the US only. Method.

Rui by state

How common Rui was among boys born in each state in 2021–2025. It is notably more common than nationally in California (1.9×). In 47 states fewer than five boys a year got the name, too few for SSA to publish, so those states show as zero.

Alaska: fewer than 5 a yearAK–Maine: fewer than 5 a yearME–Wisconsin: fewer than 5 a yearWI–Vermont: fewer than 5 a yearVT–New Hampshire: fewer than 5 a yearNH–Washington: 0.06 per 1,000 babiesWA0.06Idaho: fewer than 5 a yearID–Montana: fewer than 5 a yearMT–North Dakota: fewer than 5 a yearND–Minnesota: fewer than 5 a yearMN–Illinois: fewer than 5 a yearIL–Michigan: fewer than 5 a yearMI–New York: 0.02 per 1,000 babiesNY0.02Massachusetts: fewer than 5 a yearMA–Oregon: fewer than 5 a yearOR–Nevada: fewer than 5 a yearNV–Wyoming: fewer than 5 a yearWY–South Dakota: fewer than 5 a yearSD–Iowa: fewer than 5 a yearIA–Indiana: fewer than 5 a yearIN–Ohio: fewer than 5 a yearOH–Pennsylvania: fewer than 5 a yearPA–New Jersey: fewer than 5 a yearNJ–Connecticut: fewer than 5 a yearCT–Rhode Island: fewer than 5 a yearRI–California: 0.05 per 1,000 babiesCA0.05Utah: fewer than 5 a yearUT–Colorado: fewer than 5 a yearCO–Nebraska: fewer than 5 a yearNE–Missouri: fewer than 5 a yearMO–Kentucky: fewer than 5 a yearKY–West Virginia: fewer than 5 a yearWV–Virginia: fewer than 5 a yearVA–Maryland: fewer than 5 a yearMD–Delaware: fewer than 5 a yearDE–Arizona: fewer than 5 a yearAZ–New Mexico: fewer than 5 a yearNM–Kansas: fewer than 5 a yearKS–Arkansas: fewer than 5 a yearAR–Tennessee: fewer than 5 a yearTN–North Carolina: fewer than 5 a yearNC–South Carolina: fewer than 5 a yearSC–District of Columbia: fewer than 5 a yearDC–Oklahoma: fewer than 5 a yearOK–Louisiana: fewer than 5 a yearLA–Mississippi: fewer than 5 a yearMS–Alabama: fewer than 5 a yearAL–Georgia: fewer than 5 a yearGA–Hawaii: fewer than 5 a yearHI–Texas: 0.01 per 1,000 babiesTX0.01Florida: fewer than 5 a yearFL–
Babies per 1,000 of the same sex, Rui, boys, 2021–2025. Darker means more common.

Names with a similar history

These names rose and fell in step with Rui: their share of US boys followed the most similar curve since 1880. If you like Rui, they share its era and feel.

Questions about the name Rui

How popular is the name Rui?

Rui was the 2672nd most popular name for boys in 2025, given to 49 babies. Its best year was 1971, when it ranked 2105th; the most babies were born in 2024 (62). Over the last ten years it has moved up 2,348 places. More babies were named Rui in the 2020s than in any other decade.

Is Rui a boy or girl name?

In 2021–2025, 17% girls, 83% boys given the name Rui in the US.

Where is Rui most popular?

In 2021–2025, Rui was most common in Washington (0.06 per 1,000 boys), followed by California and New York.