Sylow is a surname that originates in Denmark. Notable people with the surname include:
People Peter Ludvig Sylow (1832–1918), Norwegian mathematician Ludvig Sylow (DBU) (1861–1933), Danish football executive Arnoldus von Westen Sylow Koren (1764–1854), Norwegian civil servant and district judge Thomas Edvard von Westen Sylow (1792–1875), Norwegian Minister of the Army
Other uses Sylow theorems, a collection of theorems named after the Norwegian mathematician Peter Ludwig Sylow Sylow subgroups of the symmetric groups are important examples of p-groups Sylow-Tournament, a knockout football competition contested annually between 1918 and 1926