Horn was married (1988) to the Norwegian Jazz drummer Jon Christensen (1943-2020), and she has two children: theater director Kjersti Horn (b. 1977, from her marriage (1973–81) to scenographer Per Kristian Horn, b.
Horn was partnered with the Norwegian Jazz drummer Jon Christensen in 1988, and she has two children: theater director Kjersti Horn, born in 1977, who came from her previous marriage to scenic designer Per Kristian Horn, which ended in 1981.