Died 23 February 1934 Nationality Danish | Occupation archaeologist Name Sophus Muller | |
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Born 24 May 1846 Copenhagen, Denmark |
Sophus Otto Müller (24 May 1846 - 23 February 1934) was a Danish archaeologist.

He was born in Copenhagen, Denmark, the son of C. Louis Müller. Sophus studied classical philology at Copenhagen University, graduating with a masters in 1871. He became a teacher until 1876, while assisting at the Museum of Northern Antiquities. He was hired by the museum in 1878, and graduated with a Ph.D. in 1880 with the essay Dyreornamentiken i Norden.

After 1881 he was secretary at the Royal Archaeological Society and edited Aarböger for Nordisk Oldkyndighed and Nordiske Fortidsminder. In 1885 he was an inspector at the museum, then, when the museum was being re-organized as the Danish National Museum, he was the director of the ancient history section in 1892. In 1895 he was named the museum director. In 1888, his two volume work Ordning af Danmarks Oldsager (The Arrangement of Denmark's Antiquities) was published. He wrote a prehistory of Denmark, which was published as Vor Oldtid (Our Prehistory) in 1897. He retired from the museum in 1921.