BabyNameScore

Leonidas

lee·ON·ih·dus · 4 syllables

Leonidas is distinctive.

91/100

Strong Practical Fit

Balanced across pronunciation, everyday use, lifetime fit and international use.

Name Profile

  1. Pronunciation & Spelling

    Clear, with one common misreading

    91/100

  2. Everyday Use

    Low risk

    95/100

  3. Growing Up

    Strong lifetime fit

    Works comfortably across child and adult settings.

    82/100

  4. International Use

    Broad international fit

    Works cleanly across the assessed languages and writing systems.

    85/100

NAME DETAILS

OTHER-LANGUAGE FORMS
Leonid
Léonide
Leonida
ORIGIN & HISTORY

About the name

Composed of Greek λέων (leon, "lion") plus the patronymic suffix -ίδης (-ides), together conventionally glossed as "son of the lion."

  1. Λεωνίδας (Greek script). Leonidas I (c. 540 BC - August 11, 480 BC) was a king of Sparta who led a Greek force, including his famed 300 Spartan hoplites plus roughly 900 helots and other Greek city-state contingents (about 7,000 total), against the invading Persian army of Xerxes I at the Battle of Thermopylae in August 480 BC. The Greeks repelled Persian frontal assaults for two days, killing an estimated 10,000 Persian troops, before a traitor named Ephialtes revealed a mountain pass allowing Persian forces to encircle them; Leonidas remained with his remaining troops and was killed on the final day. Xerxes reportedly ordered his head removed and body crucified, acts considered sacrilegious by the Greeks. Sparta later held annual Leonideia festivals in his honor, and a hero cult to Leonidas persisted in Sparta until the Antonine era (2nd century AD). A separate, distinct bearer was a 3rd-century Christian saint and martyr, Leonidas of Alexandria, father of the theologian Origen.
  2. Mythological and religious contextWhile Leonidas I is a historical rather than mythological figure, his death at Thermopylae carries quasi-legendary/heroic status in Greek cultural memory, reinforced by the post-mortem Leonideia festivals and a Spartan hero cult that lasted into the 2nd century AD; a separate early Christian saint and martyr, Leonidas of Alexandria (3rd century, father of the theologian Origen), also bears the name.
POPULARITY

Leonidas over time

United States
#510RANK

Rank #510 gives national context, not a classroom forecast.

Uncommon in current U.S. usage. Ranked #510 in the U.S., 2025.

SourceU.S. Social Security Administration · 2025 release

Pronunciation & Forms

SAY IT

lee·ON·ih·dus

STRESS ON THE SECOND SYLLABLE

OTHER-LANGUAGE FORMS
  • LeonidRU/UK
  • LéonideFR
  • LeonidaIT
PRACTICAL LIFE

How This Name Lives

AT SCHOOL & DAY TO DAY

Four syllables and a Greek patronymic ending may be more effortful for a young child to say and spell than shorter Anglo names, though the "Leo" opening gives it a familiar, easy entry point.

INTO ADULTHOOD

Reads as classic, mature, formal, upper-class, strong, and serious per aggregated user-perception data; the strong historical/heroic association with the Spartan king gives it a weighty, dramatic register in adult life.

Cultural Footprint

Carries strong Greek cultural weight through its most famous historical bearer, Spartan king Leonidas I, and functions today both as a living Greek given name and as an occasional English-language choice drawing on that same historical resonance.

TRACEABLE ORIGIN
  1. Leonidas I (c. 540-480 BC)Era
  2. Leonidas of Alexandria (3rd century)Era

Names around it

Leon
EDITORIAL SYNTHESIS

The Decision

Leonidas is spelled without unusual letter patterns, and it holds up in everyday use. Surname-dependent compatibility remains unassessed until a surname is added.

STRENGTH

English speakers will most likely pronounce it correctly on the first try. Uses standard characters that systems widely handle cleanly.

BEST FIT

Everyday Use is the strongest-scoring part of this name — no obvious nickname traps, rhymes, or initial issues detected.

FULL-NAME CHECK

See how it works with a surname.

Leonidas