Sundblad is a Swedish surname. Notable people with the surname include:
Carl Sundblad (born 1849), Swedish peace activist Emily Sundblad (born 1977), American painter, singer and art dealer Eric Sundblad (1897–1983), Swedish sprinter Linda Sundblad (born 1981), Swedish singer, actress and model Niklas Sundblad (born 1973), Swedish ice hockey player Fran Sundblad, comic artist and creator of the comic Tiff & Eve