Arden comes from an English surname, a locational name for someone who came from Arden in Warwickshire or the one from North Yorkshire. The name seems to derive from a Celtic source, via Celtic *ardwo meaning “high”. Another possible meaning I’ve seen listed for Arden as a surname is “eagle valley”, made up of Old English elements earn (eagle) and dene (valley).
Arden is also a Spanish word, the third person plural or arder meaning “to burn”, derived from Latin ardere.
Arden is the name of several places in England, including the Forest of Arden located in Warwickshire; the Forest of Arden is the main setting used in William Shakespeare’s play As You Like It (1599), which may have been based on the Ardennes, a heavily forested, hilly region spread out among France, Germany, Luxembourg, and Belgium, which may derive from the same Celtic root word as above.
Origin: uncertain, either from a Celtic or a Proto-Indo-European source
Meaning: as an English surname it seems to derive from a Celtic source “high”, though it may also mean “eagle valley”; also a Spanish word “they burn”