About the name Kostas
Kostas is a boy name with Latin roots, meaning “constant, steadfast”. It is related to Constantine, which is where the meaning comes from.
It has a unique feel. In 2025, Kostas ranked #10247 for boys in the US, with 7 babies given the name. Its peak year since 1940 was 1974. Since 2000, 100% of US babies named Kostas were boys.
Etymology
Shares its root with Constantine, which comes from Latin, meaning “constant, steadfast”.
Name meaning adapted from Wiktionary (“Kostas”, “Constantine”) by Wiktionary contributors, CC BY-SA 4.0.
- US rank 2025
- #10247
- In 2015
- #13180
- Babies in 2025
- 7
Popularity of Kostas, 1940–2025
Latest SSA data: 2025.
Popularity data: U.S. Social Security Administration national baby names (public domain; names given to at least 5 babies of one sex per year).
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Kostas
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7 LB 4 OZ · 20 IN
The Baby Kit
See Kostas on a birth announcement
Birth announcements, shower invitations, nursery wall art and milestone cards, all personalized with Kostas. Type your details once and print at home or at any print shop.
Names similar to Kostas
Name meanings marked or linked “Wiktionary” are adapted from Wiktionary by Wiktionary contributors, CC BY-SA 4.0; each name page links its source entry.