The name Fionna is a popular name and parents adore it due to its significance on the character. Fionna name meaning is One Who Is Fair , A White Shouldered Woman and it associate lucky number is 5. Fionna is a versatile name that has been popular in the English-speaking world for many decades and Fionna name meaning is also deep. Find out the pronunciation of Fionna and other well-known baby names that sound similar to Fionna in the United States of America (USA).