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Konstantinos

♂ Boy

Pronounced kohn-stan-DEE-nohs /kon.stan.ˈdi.nos/Medium

Meaning: constant, steadfastMedium

In 30 seconds: Konstantinos is the Greek form of Constantine, meaning 'constant' or 'steadfast.' It is a name of enduring weight in the Greek world.

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Origin MediumGreek (Latin root)

Meaningconstant, steadfast

U.S. rank (2025)#4002 ↘ Falling

2025 U.S. births27 boys (0.00% of U.S. boys)

Peak year1977

Total births (all-time)≈ 2,120

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

Konstantinos comes from the Latin root for 'constant' or 'steadfast' and is the full Greek form of Constantine. It honors the quality of staying firm and unchanging. The Latin Constantinus and the short form Kosta show the name's reach from formal records to everyday use.

Two Greek prime ministers, Konstantinos Konstantopoulos and Konstantinos Demertzis, carried it through national politics. Its many syllables give it grandeur, while Kosta offers an easy, friendly nickname.

Did you know? Konstantinos is the Greek form of Latin Constantinus, from constans, 'constant, steadfast,' popularized by Emperor Constantine the Great.

Overall data confidence 78%

Behind the Name - Konstantinos — etymology, usage, pronunciation, and related formsU.S. Social Security Administration — 2024 popularity rank and count supplied in the batch input CSVEtymology — Konstantinos — meaning/etymology

Variations

KostandinConstantinusKanstantsinKonstantinKosta

Nicknames

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Famous Bearers

★Konstantinos Konstantopoulos (1832–1910)
Greek politician, briefly Prime Minister in 1892.
★Konstantinos Demertzis (1876–1936)
Greek politician, Prime Minister 1935–1936.

If you like Konstantinos…

Nikolaos— shares the -os ending

Alexandros— lands in the same popularity range

Dimitrios— shares the -os ending

Demetrius— a similarly popular pick

Kairos— a similarly popular pick

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Frequently Asked

What does the name Konstantinos mean?

Konstantinos means 'constant, steadfast.' It is the Greek form of the Latin Constantinus, from constans.

How do you pronounce Konstantinos?

It's commonly said kohn-stan-DEE-nohs /kon.stan.ˈdi.nos/.

Is Konstantinos a boy or girl name?

In this batch and in recent U.S. usage data, Konstantinos is used as a boy name.

How popular is Konstantinos?

In 2024, Konstantinos ranked #2720 in the U.S. for boys, with 48 births recorded.