A variant of Cyrus, an ancient royal name of Persian origin, often linked with 'sun' or 'throne.'
Sirus is a variant spelling of Cyrus, a name whose roots reach deep into ancient Persia. The original Old Persian form, Kūruš, is believed by many scholars to derive from a word meaning "sun" or possibly "throne," though others connect it to an Elamite root meaning "shepherd." Whatever its precise etymology, the name became immortalized through Cyrus the Great, the founder of the Achaemenid Empire in the sixth century BCE — a ruler so celebrated for his tolerance and administrative genius that he is one of the few foreign rulers praised in the Hebrew Bible.
The name traveled westward through Greek (as Kyros) and Latin (as Cyrus), carried by saints, scholars, and kings across the Byzantine world and into Renaissance Europe. In Persia itself, it never lost its prestige; Cyrus remains a beloved national symbol in modern Iran. The Sirus spelling emerged as a softer, phonetically intuitive romanization, giving the ancient name a contemporary feel while preserving its imperial resonance.
In the English-speaking world, Sirus occupies an intriguing cultural space — familiar enough to feel grounded, unusual enough to feel distinctive. It carries the gravitas of a civilization-builder alongside a certain sun-drenched warmth. Parents drawn to Sirus often appreciate that beneath its modern exterior lies one of history's oldest and most consequential names.