Joana
| Gender | Female | 
|---|---|
| Other names | |
| Related names | Joan, Xoana | 

Joana is a given name, equivalent to Joanna in Catalan (IPA: [ʒuˈanə]) and Portuguese (IPA: [ʒuˈɐnɐ]). The Galician form of the name is Xoana (IPA: [ʃoˈanɐ]). It may refer to:
- Joana Angélica (1761–1822), Brazilian Conceptionist nun, belonging to the Reformed Order of Our Lady of Conception, and martyr of the Brazilian Independence
 - Joana Benedek (born 1972), Romanian-born Mexican actress
 - Joana of Braganza, a.k.a. Joana of Portugal (1635-1653) – a Portuguese princess, daughter of John IV
 - Joana Ceddia (born 2001), Brazilian-Canadian YouTuber
 - Joana de Eça (1480–1572), Portuguese courtier and royal favorite
 - Joana Glaza, the Lithuanian lead singer of rock group Joana and the Wolf
 - Joana Kuntz, professor of psychology in New Zealand
 - Joana da Paz (1925–2023), Brazilian activist
 - Joana Prado (born 1976), Brazilian-American businesswoman and former model
 - Joana Zimmer (born 1982), German pop music singer