From Germanic elements meaning peaceful territory or God's peace; popularized by the Normans.
Geoffrey is an Old French reshaping of Germanic elements that scholars continue to debate — the most widely accepted reconstruction links it to roots meaning "territory" and "peace" (from Gawia and fred), suggesting "peaceful territory" or "pledge of peace." It arrived in England with the Normans after 1066, rapidly displacing older Anglo-Saxon equivalents and becoming one of the most fashionable medieval names across several centuries. By the 12th and 13th centuries, it was so common in England that it had spawned the affectionate generic nickname "Geoffrey" for any rustic or unsophisticated fellow — much as "John" or "Jack" would later serve.
The name's single most important bearer is Geoffrey Chaucer, the 14th-century poet whose Canterbury Tales essentially founded the tradition of English literature as a vernacular art form. Chaucer's Geoffrey is a sly, humane presence — the name carries his wit and his sympathy for human folly ever since. Geoffrey of Monmouth, the 12th-century chronicler who elaborated the legend of King Arthur into the form we know today, gave the name another literary dimension entirely.
Between them, these two Geoffreys helped shape the English literary imagination. Geoffrey Plantagenet, father of Henry II, added royal lustre. The name split into two spellings over time — Geoffrey versus Jeffrey — with the latter becoming dominant in 20th-century America, particularly in the postwar decades.
Geoffrey with a G retained a more formal, Anglophile quality that appealed to a different kind of parent: one drawn to historical depth over popular ease. Today the name sits in an interesting position — not fashionable, but not forgotten, worn by enough cultural figures (Geoffrey Rush, Geoffrey Holder) to feel distinguished rather than merely old-fashioned. It is a name with deep roots and genuine literary pedigree, for parents who want both.