Costas

Costas is a familiar Greek form used for men whose full name is often Konstantinos or Constantine. The original sense comes from Latin constans, meaning to stand firm or remain constant. That idea of steadiness is at the heart of the name.

On first hearing Costas feels approachable and robust. It carries classical and historical weight because of its connection to Constantine, yet the short, two-syllable shape gives it a friendly, everyday tone. In Greek it is commonly written as Κώστας, which keeps the link to its traditional roots.

The name ultimately traces back to the Latin word constans, meaning constant or steadfast. That root produced the Late Roman and Byzantine name Constantinus, which became one of the most famous names in Christian and imperial history through figures such as Emperor Constantine. As Christianity spread and Byzantine culture developed, the name evolved in local languages. In Greek the full form became Konstantinos and the everyday familiar form became Κώστας, usually transliterated as Costas or Kostas.

Over centuries the name moved between formal and informal registers. As a formal name it links to emperors and saints. As a short form it belongs to everyday life, used by families and communities. In the modern era Costas is common in Greece and among Greek communities abroad. It is also easily recognised where variants such as Constantine, Konstantin, or Constantino are known, which helps it feel familiar in many languages while still retaining a distinct Greek flavour.