|summary=A rough prizefighter attempts to woo a wealthy and cultured heiress.
|cover=1848547471
|aznuk=1848547471
|aznus=1848547471
}}
''Cashel Byron’s Profession'' is the fourth of five 'Novels of My Nonage',written by George Bernard Shaw in 1882. In the preface of the book, Shaw heavily criticises these early works, which were rejected by the publishing houses of the time, blaming his immaturity and lack of experience in life. He was clearly unhappy about the way he had written some of his characters, stating that: '...he has not in his nonage the satisfaction of knowing that his guesses at life are true.'