Calla
Calla meaning: Beauty.
Calla origin: Greek
Calla gender: Female

Callaghan
Callaghan meaning: Strife. Saint Callaghan was an Irish saint.
Callaghan origin: Irish
Callaghan gender: Male

Callahan
Callahan meaning: Surname.
Callahan origin: Irish
Callahan gender: Male

Callan
Callan meaning: Powerful in battle.
Callan origin: Gaelic
Callan gender: Female