Karlström is a surname. Notable people with the surname include:
Birgitta Karlström Dorph (born 1939), Swedish diplomat Fredrik Karlström (born 1998), Swedish ice hockey player Hugo Karlström (1873-?), Swedish politician Jesper Karlström (born 1995), Swedish footballer Joel Karlström (born 2001), Finnish footballer Jonas Karlström (born 1978), Swedish actor Marcus Karlström (born 1995), Swedish ice hockey player Niklas Karlström, Swedish footballer Perseus Karlström (born 1990), Swedish racewalker
See also Karlstrøm