Halfdan Nicolaus Nielsen (26 March 1874 – 21 June 1952) was a Norwegian speedskater. He was the second registered world record holder in 10,000 m, when he improved Oskar Fredriksen's record in Stockholm in 1893.
هافدان نيلسن (بالنرويجية البوكمول: Halfdan Nielsen) هو متزلج سريع نرويجي، ولد في 26 مارس 1874، وتوفي في 21 يونيو 1952. (ar)
Halfdan Nicolaus Nielsen (26 March 1874 – 21 June 1952) was a Norwegian speedskater. He was the second registered world record holder in 10,000 m, when he improved Oskar Fredriksen's record in Stockholm in 1893. (en)
هافدان نيلسن (بالنرويجية البوكمول: Halfdan Nielsen) هو متزلج سريع نرويجي، ولد في 26 مارس 1874، وتوفي في 21 يونيو 1952. (ar)
Halfdan Nicolaus Nielsen (26 March 1874 – 21 June 1952) was a Norwegian speedskater. He was the second registered world record holder in 10,000 m, when he improved Oskar Fredriksen's record in Stockholm in 1893. (en)