Grahm is a short spelling of Graham, a Scottish surname and place name meaning a gravelly or gray homestead.
Grahm is a variant spelling of Graham, a name whose origins lie in the Scottish Borders and the Lincolnshire place name Grantham, recorded in the Domesday Book as 'Grantham' — likely meaning 'gravel homestead' from Old English. The de Graeme family became one of the great Norman-Scottish dynasties, and their name transformed over centuries from a surname of geographical origin into one of Scotland's most distinguished family names. James Graham, first Marquess of Montrose, who waged brilliant campaigns during the English Civil War, is one of history's most celebrated bearers, combining military genius with poetic sensibility.
As a given name rather than a surname, Graham became fashionable in the nineteenth century, particularly in Scotland and the British settler colonies of Canada and Australia, where Scottish emigrant families kept clan names alive in the forenames of new generations. Graham Greene, the English novelist who produced works including The Quiet American and The Third Man, gave the name a twentieth-century literary association — serious, morally complex, cosmopolitan without being showy. The Grahm spelling shifts the name from its Anglo-Scottish typographic convention while preserving its sound entirely.
It appears in American records with growing frequency since the 1990s, often among families who love the name's dignified sound but wish to individuate the written form. Like other respelled traditional names, Grahm occupies a small but distinct niche: rooted in history, wearing that history lightly, instantly readable but visually distinctive on a page or a nameplate.