Efstratios is a distinctive and historical Greek given name, derived from the Greek word 'efstaktos', meaning 'resolute' or 'steadfast'. It consists of two elements: 'efstrat-' (from 'efstaktos') and '-ios' (a suffix that forms masculine names). The name was borne by several notable figures throughout history. One prominent example is Saint Efstratios, a Greek martyr who lived during the reign of Emperor Diocletian in the 4th century AD. Due to its historical significance and the legacy of its bearers, Efstratios remains a respected choice among Greek parents today.
The name Efstratios saw a dip in popularity from 1976 to 1983, with only half as many births recorded in the latter year compared to the former.