Peter Birch-Reichenwald (29 November 1843 – 8 July 1898) was a Norwegian politician for the Conservative Party.
He was born in Christiania to Christian Birch-Reichenwald and Jacobine Ida Sophie Motzfeldt.[1] His paternal grandfather was Paul Hansen Birch, his maternal grandfather was Peter Motzfeldt. Peter Birch-Reichenwald married Alette Marie Christensen, and the couple had eight children.[1]
He served as mayor of Christiania during 1889.
In July 1889 he was appointed Minister of Labour as a part of the first cabinet Stang. He left in March 1891[2] when the first cabinet Stang Fell. He was elected to the Norwegian Parliament in 1892, representing the constituency of Kristiania, Hønefoss og Kongsvinger. He only served one three-year term.[2] In March 1894 he was appointed Minister of the Interior as a part of the second cabinet Stang. He replaced Johan Henrik Paasche Thorne. He left in October 1895[2] when the second cabinet Stang Fell.
He died in the same city he was born.[1] A residential street Birch-Reichenwalds gate, at Sandaker in Oslo, is named after him.