Mariana (name)
Nobles
- Mariana of Austria (1634–1696), Queen consort of Spain
- Mariana Koskull (1785–1841), Swedish noble
- Mariana Victoria of Spain (1718–1781), Queen of Portugal
- Infanta Mariana Francisca of Portugal (1736–1813), daughter of King Joseph I of Portugal
- Infanta Mariana Vitória of Portugal (1768–1788), daughter of Queen Maria I of Portugal and King Peter III of Portugal
Writers
- Mariana Frenk-Westheim (1898–2004), German-Mexican writer and translator
- Mariana Griswold Van Rensselaer (1851–1931), American author
- Mariana Starke (c. 1761–1831), English author
- Juan de Mariana (1536–1624), Spanish Jesuit and historian
Entertainers
- Mariana Efstratiou (born 1962), Greek singer
- Mariana Levy (1966–2005), Mexican actress, singer, and television host
- Mariana Nicolescu (born 1948), Romanian opera singer
- Mariana Ochoa (born 1979), Mexican singer and actress
- Mariana Popova (born 1978), Bulgarian singer
- Mariana Renata (born 1983), Indonesian actress
- Mariana Seoane (born 1976), Mexican actress, model, and singer
- Mariana Ximenes (born 1981), Brazilian actress
Athletes
- Mariana Avitia (born 1993), Mexican archer
- Mariana Díaz-Oliva (born 1976), Argentinian tennis player
- Mariana Ohata (born 1978), Brazilian athlete
- Mariana Pajón (born 1991), Colombian cyclist
- Mariana Roriz (born 1980), Brazilian water polo player
- Marijana Šurković (born 1984), Croatian freestyle swimmer
Other people
- Mariana Bracetti (1825–1903), leader of the Puerto Rico independence movement
- Mariana Loya (born 1979), American beauty queen
- Mariana Molina (born 1990), Brazilian actress
- Mariana Pfaelzer (born 1926), United States federal judge
- Mariana de Pineda (1804–1831), martyr of Spanish liberalism
- Marianna Pineda (1925–1996), American sculptor