MallowbyNames

Sibley

SIB-lee · Of uncertain origin; possibly derived from a surname, or a variant of Sibley as a feminine given name; no established pre-20th-century etymological meaning.

Peak popularity
2017
Usually for
Girls
Trend
Declining since 2018

Declining since 2018.

Popularity of Sibley since 1917

Babies named Sibley per year in U.S. Social Security records.

4812192019602000Most births 2017GirlsBoys
GirlsBoys
Data table (by decade)
DecadeGirlsBoys
1910s07
1920s011
1930s00
1940s00
1950s00
1960s00
1970s00
1980s00
1990s00
2000s310
2010s710
2020s150

Meaning & origin

Sibley is a modern American given name that emerged around the year 2000, first recorded in 2000, but remains highly uncommon. Its peak year of usage was 2017, though even then it did not enter the national rankings. The name has been on a downward trajectory since 2018, indicating a brief period of modest interest that has since faded. As a name without a clear pre-20th-century etymology, Sibley's appeal likely lies in its resemblance to other surname-inspired choices ending in "ey" or "lee," such as Harley or Hadley. While not tied to any specific cultural or religious tradition, its rarity may appeal to parents seeking a distinctive and modern-sounding name for a girl.

Sibley first appeared as a given name in the United States around the year 2000, likely drawn from the English surname Sibley. The surname itself has multiple possible origins, including a diminutive of Sibyl (from the Greek Sibylla, meaning 'prophetess') or a habitational name from a place in England. As a given name, it remains rare and has no clear etymological root in a specific language; its use as a first name is a modern coinage, possibly influenced by the fashionable -ey ending for girls.

Nicknames & variants

Nicknames: Sib, Sibby, Lee

Sibling names for Sibley

Names that share Sibley's style, for a brother or sister.

Sisters: Mabel, Cora, Elsie, Flora, Lila

Brothers: Arlo, Felix, Otis, Jasper, Theo

A parent animal hugging its little one, the personalized name page

S is for Sibley, our favorite little girl.

S is for Sibley…”

In a Mallowby alphabet book, Sibley's letter becomes Sibley's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Sibley's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Sibley mean?
The meaning is uncertain. It is likely derived from the surname Sibley, which may be a diminutive of Sibyl (prophetess) or a place name, but as a given name it has no widely accepted definition.
How popular is the name Sibley?
Sibley is a rare name in the United States. It has never ranked in the top 1,000 names and is not tracked as a common name in recent decades.
Is Sibley a boy or girl name?
Sibley is predominantly used as a girls' name, though its usage is infrequent and it could be considered unisex.