NameCensus.

UK boy's name

Poseidon

Greek mythological name of the god of the sea and earthquakes.

For 2026, the newest official UK baby-name figures on this page are from 2021. That release is the current official benchmark rather than a forecast.

Poseidon is a boy's name in the UK records. People looking for Poseidon popularity in 2026 should use the latest official release, which is 2021 in this profile. In that release it ranked #3990, with 4 babies registered with the name. Its strongest year in the published records was 2021, with 4 births.

This profile covers 4 England and Wales registrations across 1 recorded years from 2021 to 2021. The figures come from ONS England and Wales, so the page is a view of published baby-name registrations rather than a forecast or a live count of people using the name today.

Poseidon is at its recorded peak in the England and Wales series.

We estimate that about 4 living people in the UK are called Poseidon. This uses published birth registrations from England and Wales, Scotland and Northern Ireland, then applies ONS national life tables to estimate how many are likely still alive. It does not forecast extra births for 2022 or 2026.

Key insights

  • Poseidon ranked #3990 for boys in England and Wales in 2021, with 4 registrations.
  • The name peaked in 2021, when 4 boys were registered as Poseidon.
  • About 4 living people in the UK are estimated to have Poseidon as a first name, after adjusting past birth registrations with ONS life tables.

Latest rank (E&W)

#3990

2021

Births in 2021

4

Latest year

Peak year

2021

4 births

Estimated living

4

2026

Meaning

What does Poseidon mean?

Poseidon is a name of Greek origin, derived from the ancient Greek god of the sea, storms, earthquakes, and horses. The name is believed to have originated in the Mycenaean Greek period, around the 16th to 12th century BC. It is thought to be derived from the Greek words "pothi" meaning "husband" or "lord" and "da" meaning "earth" or "land," thus translating to "Lord of the Earth."

The name Poseidon first appeared in Greek mythology, where he was one of the twelve Olympian deities of the ancient Greek world. He was widely worshiped across the Greek world, particularly in coastal regions and islands, where seafaring was an integral part of life. The god Poseidon is prominently featured in Homer's epic poems, the Iliad and the Odyssey, written around the 8th century BC.

One of the earliest recorded individuals with the name Poseidon was a Greek statesman and general from the island of Rhodes, who lived in the 4th century BC. He played a significant role in the struggle against the Macedonian Empire and the establishment of the Rhodian Republic.

In the 2nd century AD, the Greek philosopher and mathematician Poseidonius of Apamea was a renowned figure. He made significant contributions to various fields, including astronomy, geography, and the study of tides, which he attributed to the influence of the moon.

During the Byzantine Empire, the name Poseidon was used by several notable individuals, including Poseidonius, a 6th-century Byzantine scholar and author of a treatise on the interpretation of dreams.

In the Renaissance period, the Italian humanist and philosopher Poseidonius Philelpho, born in 1417, was known for his translations of ancient Greek texts and his advocacy for the study of classical literature.

Another notable figure with the name Poseidon was the 18th-century French explorer and navigator Poseidon de Bellecourt, who led several voyages to the South Pacific and contributed to the exploration and mapping of the region.

Sourced from namecensus.com.

Decades

Poseidon by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Poseidon was a short-lived spike or a name that stayed in regular use. Average rank is calculated only from years where a published rank exists.

Decade Average rank Total births Years covered
2020s #3990 4 1

Related

Names similar to Poseidon

FAQ

Poseidon: questions and answers

How popular is the name Poseidon in the UK right now?

In 2021, Poseidon was ranked #3990 for boys in England and Wales, with 4 births registered.

When was Poseidon most popular?

The peak year on record was 2021, with 4 babies registered as Poseidon in England and Wales.

What is the meaning and origin of Poseidon?

Greek mythological name of the god of the sea and earthquakes.

How many people are called Poseidon in the UK?

A total of 4 babies have been registered as Poseidon across the 1 years of ONS England & Wales records shown here.

Which records is this page based on?

The England and Wales timeline uses ONS baby-name records. Scotland figures come from NRS and Northern Ireland figures come from NISRA. Counts are registrations in published baby-name files. The living estimate uses those birth registrations with ONS national life tables.