DrummondmEnglish (Rare) From a Scottish surname that was derived from various place names, themselves derived from Gaelic druim meaning "ridge".
GangmChinese From Chinese 刚 (gāng) meaning "hard, rigid, strong", as well as other characters with a similar pronunciation.
LandonmEnglish From a surname that was derived from an Old English place name meaning "long hill" (effectively meaning "ridge"). Use of the name may have been inspired in part by the actor Michael Landon (1936-1991).
RidgemEnglish (Modern) From the English vocabulary word denoting a continuous elevated mountain crest, or from the English surname derived from the word.
RigbymEnglish (Rare) From an English surname that was originally derived from a place name meaning "ridge farm" in Old Norse.