Bien Bien (1989–2002) was an American Thoroughbred racehorse bred by William S. Farish III & William S. Kilroy and raced by Trudy McCaffery and John Toffan.
He won eight stakes races during his career, including four Grade I events.
He set a course record of 1:57.75 for 1¼ miles while winning the 1993 Hollywood Invitational Turf Handicap.
He also ran second in the 1993 Breeders' Cup Turf to winner Kotashaan.
During his relatively short career at stud, he sired: Bien Bien died of a heart attack at age thirteen on March 11, 2002, after covering a mare at Kirtlington Stud.