MallowbyNames

Sonnie

SAH-nee · Sonnie originated as a diminutive of names like Sonny or as a variant of Sunny, meaning 'son' or 'sunny'.

2025 rank (boys)
#6,446
Babies named in 2025
13
Peak popularity
1897
2025 frequency
1 in 131,390 boys
Usually for
Girls & boys
Trend
Rising since 1985

A 1890s favorite, climbing again.

Popularity of Sonnie since 1893

Babies named Sonnie per year in U.S. Social Security records. Raw births topped out in 2023, but relative to how few babies were recorded back then, Sonnie's real moment was 1897.

91928192019602000Most births 2023GirlsBoys
GirlsBoys
Data table (by decade)
DecadeGirlsBoys
1890s016
1900s00
1910s079
1920s068
1930s599
1940s55108
1950s2960
1960s5457
1970s5748
1980s13339
1990s13247
2000s6883
2010s10388
2020s11587

Meaning & origin

Sonnie first appeared on U.S. records in 1893, gaining modest early traction and reaching its peak rank in 1897. After decades of low use, the name has been rising again since 1985, reflecting a broader revival of vintage nickname-style names. As of 2025, Sonnie is rare, with approximately 1 in 131,390 newborns receiving the name, placing it at rank 6446. Its unisex appeal and cheerful sound contribute to its gradual comeback.

Sonnie is a respelling of Sonny, which itself is derived from the English word 'son' (from Old English sunu) used as a term of endearment, or from 'sunny' meaning 'bright, cheerful'. It emerged in the late 19th century as a nickname and later as a given name, often used for girls as a variant of Sunny.

Sonnie” around the world

Where Sonnie lands in the latest official birth statistics abroad, matched to the U.S. spelling.

  • Ireland

    8

    babies in 2025

Sources: CSO Ireland (Ireland).

Nicknames & variants

Nicknames: Son

Variants: Sonny, Sunny

Sibling names for Sonnie

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

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

S is for Sonnie, our favorite little person.

S is for Sonnie…”

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

Make Sonnie's book

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

Questions parents ask

What does the name Sonnie mean?
Sonnie is a variant of Sonny or Sunny, meaning 'son' or 'sunny', often used as a term of endearment.
How popular is Sonnie today?
As of 2025, Sonnie ranks 6446, with 1 in 131,390 births using the name, and it has been rising in popularity since 1985.
Is Sonnie a boy or girl name?
Sonnie is unisex, though historically more common for girls in the U.S.