The correct spelling of the name "Keith" is often misspelled with an additional "i" as "Kieth". The pronunciation of the name is /kiːθ/ with a long "e" sound followed by a voiced "th" sound. The origin of the name is Scottish and it means "wood, forest". It is a popular name for boys and is consistently spelled with the standard English spelling "Keith" in official records and documents.
The given name "Keith" has uncertain etymology. It originates as a Scottish surname, derived from the Gaelic "MacCaoidh", meaning "son of Caoidh". The Gaelic name "Caoidh" likely translates to "forest", "woods", or "woodland". Over time, "Keith" transformed from a surname into a given name. However, the exact origins and etymology of the name remain unclear.