title: Jakob Nielsen
text: # Jakob Nielsen
  
  Jacob or Jakob Nielsen may refer to:
  
  * Jacob Nielsen, Count of Halland (died c. 1309), great grandson of Valdemar II of Denmark
  * Jacob Nielsen (businessman) [no], Norway (1768-1822)
  * Jakob Nielsen (mathematician) (1890–1959), Danish mathematician known for work on automorphisms of surfaces
  * Jakob Nielsen (usability consultant) (born 1957), Danish web usability consultant
  * Jakob Axel Nielsen (born 1967), Danish lawyer and politician
  * Jakob Nielsen (actor) (1900-1978)
  * Jacob Nielsen (cyclist) (born 1978), Danish cyclist
  * Jakob Ahlmann Nielsen (born 1991), Danish footballer
  