Phi

♂ Boy

How to Pronounce Phi

Pronounced FEE /ˈfiː/Medium

Meaning: Phi is a short name whose intended source is uncertain. It matches a Vietnamese given name, Phi, which can carry senses such as 'extraordinary' depending on the underlying word, and it is separately the name of the Greek letter phi. For U.S. boys the Vietnamese route is the more likely one, given the era, but we cannot be certain, so we flag it.Low

In 30 seconds: Phi is a short name of uncertain route (said FEE), most likely a Vietnamese given name and also the name of the Greek letter; it saw slight U.S. use from the nineteen-seventies on.

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Origin LowVietnamese, Greek

MeaningPhi is a short name whose intended source is uncertain. It matches a Vietnamese given name, Phi, which can carry senses such as 'extraordinary' depending on the underlying word, and it is separately the name of the Greek letter phi. For U.S. boys the Vietnamese route is the more likely one, given the era, but we cannot be certain, so we flag it.

U.S. rank (2015)#7898 ↗ Rising

2015 U.S. births10 boys (0.00% of U.S. boys)

Peak year1992

Total births (all-time)≈ 474

Popularity in the U.S. · SSA data

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

Phi is a brief, single-syllable name whose origin is uncertain. It matches a Vietnamese given name, the more likely route for U.S. boys given the resettlement era, and it is also the Greek letter phi. Rather than assert one source we note both and keep the confidence low.

Use was faint and steady rather than fashionable, only a handful of boys a year around its high in 1992, with records stretching from the nineteen-seventies into the twenty-tens. It reads as a spare heritage name most associated with Vietnamese American families.

Did you know? The same three letters name a Greek letter and a Vietnamese given name, so Phi can reach American records by quite different paths.

Overall data confidence 30%

References - Phi — Vietnamese given name Phi / Greek letter; route uncertain

Variations

PheeFeePhy

Nicknames

Fifi

Famous Bearers

Famous bearers coming soon.

If you like Phi…

Thang— a like Vietnamese boy's name of the era

Quang— another short Vietnamese name

Hoang— a similar Vietnamese heritage name

Sai— another Vietnamese name

Tai— a similarly popular pick

Explore names like Phi

By themeuncertain heritage vietnamese

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Frequently Asked

What does the name Phi mean?

It is a short name of uncertain route, matching a Vietnamese given name and the Greek letter phi.

How do you pronounce Phi?

It's said FEE /ˈfiː/.

Is Phi a boy or girl name?

Phi is used as a boy's name.

Is Phi a popular name?

No, it has always been rare in the United States, a heritage name used faintly from the nineteen-seventies onward.