Davíðsdóttir is an Icelandic surname meaning "daughter of David". Notable people with the surname include:
Brynhildur Davíðsdóttir (born 1968), Icelandic professor Dagný Lísa Davíðsdóttir (born 1997), Icelandic basketball player Eva Björk Davíðsdóttir (born 1994), Icelandic handball player Katrín Davíðsdóttir (born 1993), Icelandic CrossFit athlete Ingibjörg Davíðsdóttir (born 1970), Icelandic diplomat and politician Sigrún Davíðsdóttir (born 1955), Icelandic journalist Sunna Davíðsdóttir (born 1985), Icelandic mixed martial artist Vilborg Davíðsdóttir (born 1965), Icelandic writer