Christina Yngvesdotter Herrström Schildt (born Herrström 23 August 1959 in Lidingö, Sweden) is a Swedish author and screenwriter.
She has been married to Peter Schildt.
She has written among the children's books Ebba & Didrik, Glappet and Tusen gånger starkare and she has also written the films/TV series based on these books (Glappet was first a TV series but she wrote a book based on it).