Derwent \d(e)-rwe-nt, der-went\ as a boy's name is a variant of Derwin (Old English), and the meaning of Derwent is "gifted friend; dear friend".
The baby name Derwent sounds like Durrant, Durant, Tarrent and Trent. Other similar baby names are Darwin, Darwon, Derland, Durwin and Derward.