Costis as a Baby Name. Meaning and Origin of Costis

What is the meaning of the name Costis ?

The baby name Costis is a Male name , 2 syllables long and is pronounced Greek: /koˈstis/ (ko-STIS); Anglicized: /ˈkɒstɪs/ or /ˈkɑːstɪs/ (KOS-tis).

Costis is Greek in Origin.

Costis is a Greek diminutive of Konstantinos (Constantine), from the Latin Constantinus, ultimately derived from constans “steadfast, constant.” In Greek it appears as Κωστής (Kostís); the C-spelling is a diaspora and Latinizing transliteration. Meaning therefore centers on firmness, reliability, and perseverance. Close variants include Kostis, Kostas/Costas, Costa, and Dinos; related full forms and cognates are Constantine, Constantin, Costantino, and Constantino, with Romanian Costin as a parallel derivative.

Usage has been strong in Greece and Cyprus due to the prestige of St. Constantine the Great and his enduring Byzantine and Orthodox legacy; the name day is celebrated on 21 May (with St. Helen). Modern bearers include the poet Kostis Palamas and President Kostis (Konstantinos) Stephanopoulos, reinforcing the diminutive’s formal acceptability. Costis remains familiar in Greek communities abroad, where the initial C helps align it with Western spellings while preserving a distinctly Hellenic sound.