Arnardóttir is an Icelandic feminine surname. Notable people with the surname include:

Elsa Lára Arnardóttir (born 1975), Icelandic politician Erla Steina Arnardóttir (born 1983), Icelandic footballer Guðrún Arnardóttir (footballer) (born 1995), Icelandic footballer Guðrún Arnardóttir (hurdler) (born 1971), Icelandic hurdler

See also