Jesper Kewe Karlström (born 21 June 1995) is a Swedish professional footballer who plays as a midfielder for Serie A club Udinese and the Sweden national team.

[5] Brommapojkarna were relegated at the end of the 2014 Allsvenskan season, but Karlström had performed well enough to be signed by the larger Stockholm club Djurgårdens IF on a four-year deal.

[10] In three-and-a-half-years, he totaled 144 appearances, four goals and nine assists across all competitions for Lech, won the 2021–22 Ekstraklasa title and contributed to the club's best-ever European campaign in 2022–23, when they reached the UEFA Europa Conference League quarter-finals.

[11] On 3 August 2024, Karlström moved to Italian club Udinese on a two-year deal, for a reported fee of €2 million with potential bonuses.

[6] He made his full international debut for the Sweden national team on 11 January 2018 in a friendly 1–0 win against Denmark, playing for 66 minutes before being replaced by Kristoffer Olsson.