Given name & surname

Neptune

Neptune is used as a given name and a surname.

Meaning & origin

Where it comes from

An origin associated with this spelling is Latin.

The story

In mythological stories, Neptune is associated with the god of the sea.

Neptune through the years

Babies since 1880
24
24 boys · 0 girls
Most popular year
2022
9 babies
2025
8
#9,453 for boys
2021–25 vs 2016–20
—
Too few births to compare
02462025Highest share 20224.7
Neptune in U.S. Social Security birth records, 2021–2025, per million boys born. Years with fewer than five births for a sex are not published and appear as zero. Use the arrow keys to step through years.

By the numbers

In 2025, this name appeared in 8 U.S. birth records for boys, ranking No. 9,453 among boys’ names. The recent annual counts are too incomplete to establish a ten-year comparison. Published U.S. population figures for this spelling include 1,642 as a surname in 2020.

From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.

Neptune’s family of names

Neptune has a feminine form in Neptunine. Neptune has a related form in Neptoon. Neptune has a related form in Neptoone.

Walk Neptune’s family in the name graph

NeptuneNeptunNeptouneNeptoonNeptounNeptooneNeptunine

Inner ring: nicknames and forms · outer: across languages.

Hover or tab through the constellation to see how each name is related. Bigger dots are names more people in the U.S. share.

Nicknames & forms 5

Diminutives, pet forms, short forms and variants used alongside the name.

Across languages 1

Equivalents and cognates in other languages, plus older forms it grew from.

People named Neptune

Listed by how widely each person is written about, which says nothing about the name itself.

Similar names

If you love Neptune, these share its style, era, origin or sound, from outside its own family.

Latin · Modern

Nizier

Nizier is a masculine given name from Latin. It is used in French.

0Not recently recorded

>99% boys

Latin · Modern

Nadal

“Occitan <i class=” · “>Nadal</i>”

0Not recently recorded

>99% boys

Latin · Modern

Kaplan

Kaplan is a surname from Latin. It is used in English, Turkish, and Czech.

17Very rareRising fast

>99% boys

Germanic · Modern

Ludovico

“loud, famous”

13Very rareRising fast

>99% boys

Latin · Modern

Maik

“who” · “like”

13Very rare

>99% boys

Latin · Modern

Giano

Giano is a given name from Latin. It is used in Italian.

21RareRising

>99% boys

Latin · Modern

Miqueas

Miqueas is a given name from Latin. It is used in Spanish.

23RareRising

>99% boys

Japanese · Modern

Raiden

Raiden is a masculine given name.

62FamiliarSteady

96% boys · 4% girls

Sibling ideas

Names that share Neptune’s feel without repeating its first letter or rhyming with it.

A brother for Neptune

A sister for Neptune