From Old Norse 'kirkja' meaning church; a surname turned given name common in Scotland.
Kirk is a name of Old Norse and Old English origin, derived from the word for 'church' — cognate with the modern German 'Kirche' and the Scottish Gaelic 'eaglais.' In the Viking Age and the medieval period, '-kirk' appeared frequently in Scandinavian and Scottish place names: Falkirk, Selkirk, Ormskirk — settlements defined by their churches. The word was absorbed into Scots English and Northern English dialects, where it remained the everyday word for a church long after the southern English 'church' had won elsewhere.
As a surname, Kirk was common across Scotland and the north of England, carried by families who lived near or were associated with a church. The transition from surname to given name followed familiar Anglo-American patterns, and Kirk enjoyed particular popularity in the mid-twentieth century United States. Kirk Douglas — born Issur Danielovitch — adopted the name and made it into a symbol of hard-edged mid-century American masculinity through roles in 'Spartacus,' 'Paths of Glory,' and dozens of other films.
His son Michael continued the dynasty, making the Douglas family itself a kind of cultural institution. But it is arguably James Tiberius Kirk — the fictional captain of the USS Enterprise in Gene Roddenberry's 'Star Trek,' played by William Shatner — who has most permanently shaped the name's resonance. Captain Kirk became shorthand for a certain kind of swaggering, optimistic, rule-bending heroism that defined an era of American self-imagination.
Kirk peaked in American popularity in the 1960s and 1970s, riding the cultural wave of both Douglas and Star Trek, then faded as those references aged. Today it sits in that interesting middle distance — familiar enough to feel grounded, rare enough to feel distinctive — increasingly appealing to parents who want a short, strong name with genuine cultural texture.