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

• Banks, Idaho
• Bank side
• Bankside (Fairfield)
• Bankside Power station
• Bankside University
• Bankside Winter Market
• Banksie
• Banks in canada
• Banks in Chisinau, Moldova
• Banks in Chișinău, Moldova
• Banks in Iceland
• Banks in Indonesia
• Banks in Iraq
• Banks in Northern Ireland
• Bank Sinopac
• Banks in Romania
• Banksiops
• Banks Island (British Columbia)
• Banks islands
• Banks Island Tundra Wolf
• Banks Island Wolf
• Banks lake
• Bank Slaski
• Bank SNORAS
• Bank Snoras