Ludvig Peter Fenger (7 July 1833 – 9 March 1905) was a Danish architect. He was a proponent of the Historicist style, and from 1886 to 1904 he held the title of City Architect in Copenhagen.
In 1871 Fenger became a member of the Academy and in 1880 he was made a professor. From 1886 he was a corresponding member of the Royal Institute of British Architects.
In 1885 he entered local politics when he became a member of the Copenhagen City Council (Danish: Borgerrepræsentationen) in Copenhagen, a post he left when he was appointed City Architect the following year.
Personal life
Fenger married on 3 July 1872 in the Church of Our Saviour Augusta Theodora Fenger (1839-1914), daughter of vicar Johannes Ferdinand Fenger (1805-61) and Marie Magdalene Boesen (1809-72).