Save Gender Masculine Usage English (British, Rare) Pronounced Pron. IZ-əm-bahd(British English) [key] Other Forms FormsIsembard Meaning & History English form of a medieval French name appearing in various spellings such as Ysambart or Isembart, which were derived from Isanbert. The name is mainly synonymous with the leading British civil engineer Isambard Kingdom Brunel (1806-1859).