Scottish surname meaning John's town, used as a given name from the place name.
Johnston as a given name belongs to a distinctly Anglo-American tradition of repurposing surnames — particularly those with honorable family or place associations — into first names. The surname itself derives from the Scottish and Northern English place-name tradition: 'John's tūn,' meaning John's estate or settlement, with 'tūn' being the Old English word for an enclosed farmstead. The Johnston clan is one of the prominent border families of Scotland, their name appearing in records from the twelfth century and their history intertwined with the turbulent politics of the Scottish Marches.
The practice of using Johnston as a first name gained particular traction in the American South and among families of Scots-Irish descent, where passing a mother's maiden name or a distinguished family surname to a son was considered an act of genealogical piety. This tradition produced a number of notable bearers across American history, and the name carries an implicit narrative of lineage and belonging — a child named Johnston is, in some sense, being handed a piece of the family map. President Andrew Johnson's family name is closely related, and the Texas city Johnston was named in honor of Confederate General Albert Sidney Johnston, which for good or ill embedded the name in Civil War memory.
In contemporary usage, Johnston as a first name remains uncommon enough to feel genuinely distinctive while being legible enough that it never requires explanation. It sits in the same register as names like Garrison, Fletcher, or Prescott — surnames reborn as first names that suggest solidity, history, and a family confident enough in its past to write it into a child's identity.