Guidonia may refer to:
- Guidonia Montecelio, an Italian town
- Guidonia P.Browne, a synonym of the plant genus Laetia
- Guidonia (DC.) Griseb. and Guidonia Mill., both synonyms of the plant genus Samyda
- Guidonia (gastropod), an extinct genus; see List of gastropods described in 2010
This disambiguation page lists articles associated with the title Guidonia.
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