From the valley; prideful
Dallen is likely a modern variation of the English surname Dallin, which originates from the Old English word 'dael' meaning valley. It may also be linked to the Irish surname Dallán, meaning 'little blind one'. In some contexts, it is interpreted as a variant of the Germanic name Dallin, associated with pride or loftiness.
American serial killer
US births per 5-year period, 1990–present (SSA data).
