It depends on the meaning :
backern(=supporter) [+person, scheme] partisan m , (financially) commanditaire m
financial backer commanditaire m
→ He is alleged to have been the main financial backer of the extremist militias.
Traduction Dictionnaire Collins Anglais - Francais
backer n avaliseur m , garant m
Wally De Backer's birth name is Wouter De Backer.
It's Wouter De Backer he only uses gotye for his stage name <3
broadway backer
Ray Lewis.
Marijn Backer was born in 1956.
P. A. Backer was born in 1940.
P. A. Backer died in 1993.
Terry Backer was born in 1954.
Finn Backer was born in 1927.
Lars Backer died in 1930.
Lars Backer was born in 1892.
Adriaen Backer was born in 1635.