Lucille Desiree Ball.
Lucille Alpert's birth name is Lucille Proser.
Lucille Bogan's birth name is Lucille Anderson.
Lucille Page's birth name is Lucille Berdell.
Lucille Hutton's birth name is Juanita Lucille Hutton.
Lucille Norman's birth name is Boileau, Lucille Pharaby.
Lucille Hansen's birth name is Lucille Marie Hansen.
Lucille Fletcher's birth name is Violet Lucille Fletcher.
Lucille La Verne's birth name is Lucille Mitchum.
Lucille Ryman Carroll's birth name is Ryman, Lucille.
Her middle name is Lucille.
Because her real first name was Lucille. Lucy is short for Lucille.
Lucille Ball's real name was Lucille Ball. --Lucille Ball's birth name was Lucille Désirée Ball. Then she took on the last name Arnaz (but used "Ball" in television and movies) from her first marriage to Desi Arnaz. Then she took on the last name of Morton, from her husband Gary Morton.