Marika Karin Louise Lagercrantz (born 12 July 1954) is a Swedish actress. Since 2011 she is Sweden's cultural attaché at the Berlin embassy in Germany.

Lagercranz was born in Solna. She is the daughter of Olof Lagercrantz, granddaughter of Hans Ruin, sister of David Lagercrantz, and cousin of Lars and Johan Lönnroth. She participates in season 10 of Stjärnorna på slottet which is broadcast on SVT.