Dallan is a given name and surname. Notable people with this name include: Dallán mac Breasal, 5th century Irish king Dallan Forgaill, 6th century Irish saint Dallán mac Móre, 8th–9th century Irish poet Dallan Muyres (born 1987), Canadian curler Dallan Murphy (born 1988), Australian rugby player Denis Dallan (born 1978), Italian rugby player Manuel Dallan (born 1976), Italian rugby player Irish masculine given names