Jacob Nilsson (born 12 October 1993) is a Swedish professional ice hockey centre currently playing for the Rockford IceHogs in the American Hockey League (AHL) while under contract to the Chicago Blackhawks of the National Hockey League (NHL).
Nilsson made his Swedish Hockey League (SHL) debut during the 2017–18 season, playing in 40 games for Mora IK. He made his SHL debut and recorded his first SHL goal on 19 October 2017 against Frölunda HC.
On 31 May 2018, as a free agent, the Chicago Blackhawks of the National Hockey League signed Nilsson to a one year contract. Nilsson then moved to North American to join the Blackhawks organization. While attending the Blackhawks training camp, Nilsson was assigned to their American Hockey League affiliate, the Rockford IceHogs, on 21 September.
On 19 April 2019, the Blackhawks signed Nilsson to a one-year contract extension. He was subsequently assigned to the Rockford IceHogs and named an assistant captain alongside Matthew Highmore and Tyler Sikura.