Bryn is a given name of Welsh origin, derived from the Welsh word bryn meaning "hill, mound". In Wales, it is used almost exclusively as a masculine name, but in other English-speaking countries it has gained unisex usage, often in the variant form Brynn.Etymology and HistoryThe name Bryn comes directly from the Welsh noun bryn ("hill"), reflecting a common Celtic toponymic tradition. Historically, Welsh names were borrowed as personal names in England. Early census records (from 1851 to 1881) show only a handful of Bryns in England and no bearers from Wales. The name became more common in Wales after the late 1880s. A key turning point: the Liberal politician John Roberts of Bryn Adda, Bangor, who became the local Member of Parliament in 1885, took Bryn as a personal name (from his home's name, "Bryn Adda") to avoid confusion with another MP bearing the same name. He subsequently appeared in electoral rolls as Bryn Roberts. The census of 1891 recorded the first Welsh-born Bryn, in Anglesey. By 1901 there were 28 Bryns in Wales.Usage and VariantsBryn is the basis of several English forms. The feminine-derived variant Brynn (from a respelling of the masculine original) emerged in modern usage and is particularly common in the United States as a girl's name. It gained public familiarity through the actress Brynn Thayer (born 1949). Another spelling is Brynne, equally rare. Despite its unisex potential outside Wales, Bryn is overwhelmingly given to boys in Welsh naming patterns.Notable BearersBryn Allen (1921–2005), Welsh international footballerBryn Apprill (born 1996), American voice actressBryn Atkinson (born 1982), Australian mountain bike cyclistBryn Christopher (born 1985), British singer and songwriterBryn Crossley (1958–2018), Welsh jockeyBryn Cunningham (born 1978), Irish rugby union playerDistributionRecorded most commonly in Great Britain and Australia, the name appears in many English-speaking countries but never ranked among the top-given names. Census and birth-registration data show a sustained modest presence particularly in Wales. Its characteristic gliding into /r/ and phonetically minimalist quality has kept it attractive to modern parents seeking simplicity and Welsh identity.