Sionna
A girl's name of Irish origin with 62 recorded U.S. births.
Meaning & Origin
At 6 letters and two syllables, Sionna hits the middle ground most parents look for: long enough to feel complete, short enough for everyday use. It has been used as a girl's name in the U.S. since 1994, with 62 total recorded births.
Sionna is not in the current top 1,000, which means your child is unlikely to share the name with a classmate — a plus for parents who value distinctiveness.
Sionna is not in the current top 1,000 girl names nationally, making it an uncommon choice — though your state or community may differ.
Sionna is a girl's baby name of Irish origin, the Irish form of Shannon — from the River Shannon, Ireland's longest river, whose name derives from the Old Irish Sionann,' possibly meaning 'old river' or connected to the sea goddess Sinann of Irish mythology.
Sionna gives Shannon its original Irish spelling and mythology back. For parents with Irish heritage who want a name that feels authentically Celtic rather than Anglicized, Sionna is the real thing.
EtymologyShow more
The ending of a name often carries more etymological information than the beginning. Sionna's final sounds are open, warm — a soft ending that crosses many language boundaries. In English-language naming, many feminine names end on open vowels or soft consonants, creating a melodic, approachable quality. Sionna follows that feminine pattern.
Explore the ending-based name pages on this site to find names that share Sionna's suffix pattern — names with similar endings often share a style and era, even when they come from different linguistic backgrounds.
At a Glance
Popularity Over Time
Sionna has 11+ years of history in the U.S., first appearing in 1994.
Popularity by Decade
| Decade | Births | Trend |
|---|---|---|
| 2020s | 12 | ▼ |
| 2010s | 20 | ▼ |
| 2000s | 25 | ▲ |
| 1990s | 5 | — |
The Story of Sionna
A Gen Z name
Peaking in 2008, Sionna is a name that defines a generation. Girls named Sionna are most likely born between 1998 and 2018.
How rare is Sionna?
With fewer than 500 recorded births, Sionna is an exceptionally rare name — a one-of-a-kind choice.
The journey through the decades
First appeared in the records in 1994, peaked in the 2000s with 25 births that decade, and has gracefully settled into a quieter chapter.
Sionna by the numbers
- Would fill 1 school bus
Year-by-Year Data
View complete yearly data(11 years, 1994–2021)
| Year | Births | Rank |
|---|---|---|
| 2021 | 7 | #13289 |
| 2020 | 5 | #17173 |
| 2018 | 5 | #17792 |
| 2014 | 5 | #18859 |
| 2013 | 5 | #18901 |
| 2010 | 5 | #19454 |
| 2009 | 6 | #17003 |
| 2008 | 7 | #15181 |
| 2007 | 6 | #17326 |
| 2003 | 6 | #15502 |
| 1994 | 5 | #15433 |
Source: U.S. Social Security Administration. Showing years with 5+ recorded births.
Frequently Asked Questions
Is Sionna a boy's or girl's name?
When was Sionna most popular?
How popular is the name Sionna?
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Data source: U.S. Social Security Administration, 1994–2021