unisex name
Sai
- Origin Japanese
- Gender Unisex
- Syllables 1
- Letters 3
- Popularity Uncommon
- Births on record 3,163
Scotland
#739
2015 births
Sai is a unisex name with 1 syllable. It is given to both girls and boys — about 22% of recorded births with this name are girls. In 2025 it was given to 93 babies in the United States. It is used consistently but remains uncommon.
- Sai is a name of Japanese origin.
- Peaked in 2019, when 96 babies were given the name.
- It has been rising over the past decade.
- Today about 1 in 35,649 babies in the United States is given this name.
- First appears in US birth records in 1972.
- 1 syllable, with the stress on syllable 1.
Sai over time
Births per decade in the United States, 1970s to 2020s. The striped bar is the 2020s, still in progress — it covers 2020 to 2025, not a full ten years.
Show the numbers
| Decade | Births |
|---|---|
| 1970s | 5 |
| 1980s | 165 |
| 1990s | 218 |
| 2000s | 566 |
| 2010s | 680 |
| 2020s (to 2025) | 525 |
How popular is Sai?
In 2025, Sai was given to 93 babies in the United States. It is used consistently but remains uncommon.
Where Sai is used
US figures omit any name given to fewer than five babies in a year, so the rarest names are absent from the source rather than absent from use. Data & sources.
How Sai is spelled
Birth registers count each spelling separately, so every one has its own ranking.
| Spelling | What it is | Births on record |
|---|---|---|
| Saï | Saï is a rare spelling of Sai, written with a diaeresis and recorded about 5 times, mostly in France. | 5 |
Names that peaked alongside Sai
These names rose and fell in the same era, which is why they tend to sound like they belong together.
Parents who like Sai also like
Names whose popularity has risen and fallen in step with Sai over the last century — the same taste, a different name.
Sibling names for Sai
Names from the same era that won't rhyme or share an initial with Sai — the two things that make a sibling set grate.
Common questions about Sai
How popular is the name Sai?
In 2025, Sai was given to 93 babies in the United States. It is used consistently but remains uncommon.
Is Sai a girl's or a boy's name?
Sai is used for both girls and boys. About 22% of recorded births with this name are girls.
How many syllables are in Sai?
Sai has 1 syllable.
When was Sai most popular?
Sai peaked in 2019, when 96 babies were given the name. It has been rising over the past decade.
Is Sai a good name?
That is not something records can settle, but they can tell you what you would be choosing. Sai currently ranks #1,104 in the United States. It has been rising over the past decade. Everything else — how it sounds with your surname, who it reminds you of — is yours.