embrisa.
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Theme
Masculine

Leonidas

liˈɒn.ɪ.dəs

Son of the lion

How to say it

le · ON · i · das

liˈɒn.ɪ.dəs

What it means

Greek, 'son of the lion' or 'lion-like,' from leon, 'lion.'

Leonidas comes from the Greek leon, 'lion,' giving 'son of the lion' or 'lion-like.' King Leonidas led the 300 Spartans at Thermopylae, sealing the name's heroic, fearless ring. Grand and strong, it shortens neatly to Leo or Leon. Said lee-ON-ih-dus.

How to spell Leonidas

The standard spelling is Leonidas. Common variants include Leónidas, Leonid, Leonidis, but Leonidas is the most widely used form.

Popularity over time

#10 #100 #1000 #1 #631818802025

peaked at #421 in 2022, currently #510 in 2025.

Source: U.S. Social Security Administration, names given to at least 5 babies in a year, 1880–2025. Reviewed July 2026. See where the names are moving

Heads-up notes

  • Nickname

    Leo, Leon.

  • Pop culture

    King Leonidas of Sparta and the 300.

Who's worn it

Historical figures, characters, and public faces who share the name. The cultural surface, for whatever weight you want to give it.

  • Leonidas king of Sparta who died at the Battle of Thermopylae

Spelling variants

  • Leónidas
  • Leonid
  • Leonidis

Common questions

What does the name Leonidas mean?
Greek, 'son of the lion' or 'lion-like,' from leon, 'lion.'
What does Leonidas mean in Greek?
In Greek, Leonidas means "Son of the lion." Leonidas comes from the Greek leon, 'lion,' giving 'son of the lion' or 'lion-like.' King Leonidas led the 300 Spartans at Thermopylae, sealing the name's heroic, fearless ring. Grand and strong, it shortens neatly to Leo or Leon. Said lee-ON-ih-dus.
How do you pronounce Leonidas?
Leonidas is pronounced liˈɒn.ɪ.dəs. Say it as le-ON-i-das, with the stress on the "on" syllable.
How do you spell Leonidas?
The standard spelling is Leonidas. Common spelling variants include Leónidas, Leonid, Leonidis.
Is Leonidas a boy or girl name?
Leonidas is traditionally a masculine name.
How popular is the name Leonidas?
Leonidas ranked #510 in the U.S. in 2025, according to Social Security Administration data.