- Country: USA
- Genres: Action, Adventure, Romance
- Release: 1949-02-27
- Director: Arthur Pierson
- Writers: Justin Huntly McCarthy , Douglas Fairbanks Jr. , Robert Thoeren
- Language: English
- Stars: Douglas Fairbanks Jr. , Helena Carter , Richard Greene , Patricia Medina , Arthur Shields (1896–1970) , J.M. Kerrigan , Ludwig Donath , Lumsden Hare , Otto Waldis , Henry Brandon
- Runtime: 94 min
- Awards: N/A
- AKA: Auf Leben und Tod , 熱血児 (Japan) , Soldato di ventura (Italy) , The O'Flynn (United States of America) , Amor e Espada (Brazil) , Espada y corazón (Mexico) , The Fighting O'Flynn , Aventure en Irlande (France, French Republic) , Korsade klingor (Sweden) , Den irske kaptajn (Denmark) , Duell um Benedetta (Austria) , El capitán O'Flynn (Spain) , Me to spathi sto heri (Greece) , Audaz Aventureiro (Portugal, Portuguese Republic) , The Fighting O'Flynn (United States of America) , Seikkaileva ritari (Finland) , The Fighting O'Flynn (United Kingdom)
- Plot: O'Flynn, soldier of fortune, returns to Ireland during the Napoleonic wars just in time to save Lady Benedetta from robbers. But they pursue her to ruinous Castle O'Flynn, after secret papers she carries which would reveal Napoleon's plans to invade Ireland. The Napoleonic agents (and British traitors) will stop at nothing to gain their ends, but the swashbuckling exploits of the O'Flynn may be a match for them all
- IMDB:tt0041363
The Fighting O’Flynn Cast · · · ALL
Arthur Pierson
Director
Douglas Fairbanks Jr.
The O'Flynn
Helena Carter
Lady Benedetta
Richard Greene
Lord Philip Sedgemonth
Patricia Medina
Fancy Free
Arthur Shields
(1896–1970)
Dooley
Ludwig Donath
Hendrigg
Lumsden Hare
The Viceroy
Otto Waldis
Gen. van Dronk
Henry Brandon
Lt. Corpe
J.M. Kerrigan
Timothy
Heather Wilde