Juana Núñez de Lara (1286 – 1351) was a daughter of Juan Núñez de Lara the Fat and his wife Teresa Díaz II de Haro of the lordship of Biscay.^[1] Juana is also known as la Palomilla or Lady of Lara.

Juana was first married to Infante Henry of Castile,^[1] son of Ferdinand III of Castile and his first wife Elisabeth of Swabia. The marriage was childless and Henry died in 1304, leaving Juana a young widow.

Juana was married secondly to Ferdinand de la Cerda,^[2] son of Ferdinand de la Cerda and his wife Blanche of France. Blanche was a daughter of Louis IX of France and Margaret of Provence. Juana and Ferdinand had four children:

• Juan Núñez III de Lara (1313–1350), married Maria de Haro.^[1]
• Blanche Núñez de Lara (1311–1347), married Juan Manuel, Prince of Villena^[2] and was mother of Juana Manuel of Castile, consort of Henry II of Castile and mother of John I of Castile.
• Margaret Núñez de Lara, a nun.
• Maria Núñez de Lara, married Charles II of Alençon^[1] and was mother of Charles III of Alençon.

Juana's husband died in 1322, Juana herself died in Palencia in 1351.