Croiadh is thought to derive from an old Irish word connected to the concepts of shape, form, or body — some scholars also link it to ideas of beauty or physical grace.
Crona
Saffron; golden-yellow
Crosby
Place by cross
Crue
True and loyal
Cruz
cross
Crystal
derived from the Greek word for 'rock' or 'ice'
Cuan
Little harbour; a small, sheltered bay
Cullen
Strong and dark
Curt
Short and sturdy
Curtis
Courageous
Cuthbert
Famous in battle
Cybele
Mountain goddess
Cygnus
Swan constellation
Cyle
Circle of life
Cynthia
from Mount Cynthus, or from Cynthia (goddess of the moon)
Cypress
Tall and fragrant tree
Cyril
Lordly prince
Cyrus
Persian king, ruler
Dack
Rugged protector
Dahl
Gentle valley
Dahlia
Fleur-de-lis flower
Daibhi
Daibhi means "beloved" or "darling," sharing its roots with the Hebrew name David, which carries the sense of being deeply cherished and dear to one's heart.
Daire
strong, noble
Dairl
Rare treasure
Daisy
innocent, pure
Daisy-Ann
Day's eye, grace
Daithi
Swiftness; one who is quick and nimble
Dakota
Friendly, companionable, or native of the Dakota people