Hans Ditlev Franciscus (Frants) von Linstow (4 May 1787 - 10 June 1851) was a Danish-born, Norwegian architect, who is by many considered the first Norwegian architect.He is well-known to have designed the Royal Palace in Oslo and much of the surrounding park and the street Karl Johans gate. 
Hans Ditlev Franciscus von Linstow was born in Nord-Sjælland, Denmark. His parents were Hartvig Christoph von Linstow (1740–1823) and Charlotta Benedicta Eleonora von der Lühe (1753–1837). Linstow belonged to a noble family from Mecklenburg who were naturalized in Denmark. He grew up in Hirschholm Castle (Hirschholm Slot) in North Zealand. He matriculated in 1805 and earned a law degree at Copenhagen University in 1812. He first studied painting and drawings at the Art Academy in Copenhagen, Denmark, while he at the same time studied law.
After finalizing these studies in 1812, he went to Kongsberg, Norway (which then was a part of Denmark) and studied in the years 1812-1814 at the so called Bergakademiet, which educated military engineers. He did, however, not complete this military education, but studied architecture at the same time. He worked at the Danish Royal Court in 1814, but at the split between Denmark and Norway the same year, he went to Norway and worked in the years 1815-1820 as a military lawyer at the cavalry. In 1818, he was one of the initiators of the Norwegian National Academy of Craft and Art Industry in Christiania. He taught, first plaster, and later building construction until he took his leave in 1840.
In 1823, he was commissioned to design the new Royal Palace (Det Kongelige Slott) in Christiania and create the surrounding park, where he also drew the guards' house. He also helped his friend, the writer Henrik Wergeland in constructing his new house Grotten in the outskirts of the park. Both these buildings are examples of his early use of the Swiss chalet style in his drawings.
Since the Royal Palace was erected outside the main city area, Linstow proposed a plan in 1838 to connect the palace to the city. The main parts of this plan were realized in what is now the main boulevard and tourist area, the Karl Johans gate. In the years 1828-1835, Linstow worked on a set of standard drawings for Norwegian churches. About seventy different churches were erected all over Norway based on these drawings.
In 1885, a street Linstows gate in Christiania was named for him.
- Grue Church in Solør, 1823–28
- Royal Palace in Oslo, 1823–48
- Atrå Church in Tinn, 1828–36
- Flekkefjord Church in Vest-Agder, 1831–33
- Kvinesdal Church in Vest-Agder, 1835–37
- Vikøy Church, Kvam in Hardanger, 1838
- Lyngdal Rectory in Vest-Agder, 1838
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