Little bright-headed one
Derived from the Irish surname Ó Ceallacháin, it is a diminutive of the name Ceallach. While the exact meaning of the root is debated, it is most commonly interpreted as 'bright-headed' or 'frequenting churches'. It has transitioned from a traditional Irish surname to a stylish, spirited first name in the United States.
US births per 5-year period, 1990–present (SSA data).
The protagonist of the science fiction series Callahan's Crosstime Saloon · Callahan's Crosstime Saloon
A character in the film Legally Blonde · Legally Blonde
American football player
