Antonia may refer to:
Antonia (name), including a list of people with the name
Any woman of the Antonius family of ancient Rome
Antonia of Balzo (1355–1374), queen consort of Sicily
Princess Antonia of Württemberg (1613–1679)
Princess Antónia of Portugal (1845–1913)
Princess Antonia of Luxembourg (1899–1954)
Princess Antonia of Prussia (born 1955)
Mother Antonia, American-born nun residing in Mexico
Antonia, Romanian singer
Antonia (film), a 1995 Dutch drama
Antônia, a 2006 Brazilian musical drama
Antonia: A Portrait of the Woman, a 1974 documentary
Antonia, a Mad TV recurring character
"Antonia", a song by Motion City Soundtrack on the album Even If It Kills Me
"Antonia", a song by Pat Metheny on the album Secret Story
"Antonia", a love interest of James T. Kirk in Star Trek 7 'Generations'"
Antonia, Masovian Voivodeship, east-central Poland
Antonia, Warmian-Masurian Voivodeship, north Poland
Antonia, Missouri, a community in the United States
Antonia Fortress, Jerusalem
Pico d'Antónia, Cape Verde
Antonia (plant), a genus in the Loganiaceae family
Antopedaliodes antonia, a butterfly species in the genus Antopedaliodes and the tribe Satyrini
Elachista antonia, a moth species in the genus Elachista
RMS Antonia, an ocean liner
272 Antonia, an asteroid
British Rail Class 40 diesel locomotive D214, built by English Electric at Newton-le-Willows, Lancashire
