Yrsa Sigurđardóttir (born 1963) is an Icelandic writer, of both crime-novels and children's fiction. She has been writing since 1998. Her début crime-novel was translated into English by Bernard Scudder. The central character in the crime novels is Thóra Gudmundsdóttir (Ţóra Guđmundsdóttir), a lawyer.
Yrsa is married with two children, and she also has a career as a civil engineer.