Gigantea may refer to:
Genera Gigantea (alga), a genus of brown algae in the family Laminariaceae Gigantea (flatworm), a genus of planarians in the family Geoplanidae
Species C. gigantea (disambiguation) D. gigantea (disambiguation) E. gigantea (disambiguation) G. gigantea (disambiguation) M. gigantea (disambiguation) P. gigantea (disambiguation) R. gigantea (disambiguation) S. gigantea (disambiguation) T. gigantea (disambiguation) V. gigantea (disambiguation) W. gigantea (disambiguation)
See also List of Latin and Greek words commonly used in systematic names#giganteus