The murder mystery scooped three trophies at the ceremony, which celebrates achievements in crime literature, TV and film.
The Killing was awarded the 'International TV Dagger', while its stars Sofie Gråbøl and Ann Eleonora Jørgensen grabbed 'Best Actress' and 'Best Supporting Actress' respectively.
In other categories, Jeff Bridges western True Grit won the 'Film Dagger' and BBC detective drama Case Histories received the TV equivalent.
The corporation's success continued as Luther star Idris Elba and Rafe Spall of The Shadow Line took home the 'Best Actor' and 'Best Supporting Actor' honours.
A US remake of The Killing premiered on AMC in April and was renewed for a second season in June.
> Why Digital Spy loved The Killing