Ferdinand Reinhardt Bie (16 February 1888 – 9 November 1961) was a Norwegian track and field athlete.

At the 1912 Summer Olympics in Stockholm, he won the silver medal in pentathlon.

[1] On winner Jim Thorpe's subsequent disqualification for having played semi-professional baseball in 1913, Bie was declared Olympic champion, but refused to accept the gold medal from the IOC.

[2] In 1982 Thorpe was reinstated as champion by the IOC; however, Bie was still listed as co-champion[3] until the IOC announced 15 July 2022 that Thorpe's gold medal had been reinstated and Bie became the silver medalist.

[5] He became Norwegian champion in long jump in 1910 and 1917[6] and in 110 m hurdles in 1910.