Einarsdóttir is a surname. Notable people with the surname include:
Bryndís Einarsdóttir (born 1958), Icelandic footballer Freydís Halla Einarsdóttir (born 1994), Icelandic alpine ski racer Hildigunnur Einarsdóttir (born 1988), Icelandic handball player Hildur Vala Einarsdóttir (born 1982), Icelandic singer Jóhanna Einarsdóttir (born 1952), Icelandic professor Ólafía Einarsdóttir (1924–2017), Icelandic archaeologist Sunneva Einarsdóttir (born 1990), Icelandic handball player Svandís Dóra Einarsdóttir (born 1984), Icelandic actress Thelma Björk Einarsdóttir (born 1990), Icelandic footballer