From the valley; meadow dweller
Dallyn is a modern variation of the English surname Dallin, which likely derives from the Old English word 'dael' meaning valley. It may also be related to the name Dallan, an Irish name meaning 'little blind one.' In a contemporary context, it is often chosen for its soft, phonetic appeal and its connection to nature-inspired surnames.
Less common today
Dallyn isn't in the latest US Top 1000. It last peaked at #4,764 in 2003.
American jurist and religious leader
Professional rugby league footballer
US births per 5-year period, 1990βpresent (SSA data).