Maiden's hair or maidenhair may refer to:
Maidenhair (painting), a 1974 tempura painting by American artist Andrew Wyeth Maidenhair fern, several ferns of the genus Adiantum Maidenhair moss (Fissidens adianthoides), a species of moss Maiden's hair plant, any of several green seaweeds: Maiden's hair plant, several species of the genus Chlorodesmis Maiden's hair plant, several species of the genus Caulerpa Maiden's hair tree or ginkgo (Ginkgo biloba) Maidenhair spleenwort (Asplenium trichomanes), a species of fern A woman's pubic hair