Khan is a title-name of Central and West Asian use meaning "ruler," "leader," or "nobleman."
Khan is one of the great title-names of the ancient world, derived from the Old Turkic and Mongolian khagan, meaning "ruler," "sovereign," or "lord." It first rose to world-historical prominence through the Mongol Empire, where Genghis Khan — born Temüjin — united the steppe tribes in the early thirteenth century and built the largest contiguous land empire in history. The word became so synonymous with supreme authority that khans and khanates shaped the political geography of Central Asia, Persia, Russia, and India for centuries.
As Islam spread across Central and South Asia, Khan became absorbed into Muslim naming traditions as both a surname and honorific, and today it is one of the most common surnames on earth — carried by tens of millions across Pakistan, India, Afghanistan, Iran, and their diasporas worldwide. As a given name it projects something of that ancestral grandeur in a single syllable. In South Asian cinema, the triumvirate of Shah Rukh Khan, Aamir Khan, and Salman Khan transformed it into a byword for stardom, and in the English-speaking world the name appears in everything from Star Trek's iconic villain Khan Noonien Singh to the British political sphere.
Used as a given name in the West, Khan feels bold and streamlined — one syllable carrying enormous cultural weight. It speaks to parents who want a name rooted in warrior heritage and empire, worn lightly as a first name precisely because its history is so vast.