Willa is a feminine given name. Notable people and characters with the name include:

• Willa or Guilla of Provence (died before 924), early medieval Frankish queen
• Willa of Tuscany (died 970), queen consort of Berengar II of Italy
• Willa Brown (1906–1992), African-American pioneering aviator, lobbyist, teacher and civil rights activist
• Willa Cather (1873–1947), American novelist and writer
• Willa McGuire Cook (1928–2017), American three-time world and 18-time national water skiing champion
• Willa Fitzgerald (born 1991), American actress
• Willa Ford, stage name of American singer, songwriter and actress Amanda Lee Williford (born 1981)
• Willa Holland (born 1991), American actress and model
• Willa Kim (Wullah Mei Ok Kim) (1917–2016), American costume designer for stage, dance and film
• Willa Muir (1890–1970), Scottish novelist, essayist and translator
• Willa O'Neill (born 1973), New Zealand actress
• Willa Beatrice Player (1909–2003), African-American educator, college president and civil rights activist
• Willa Shalit (born 1955), American sculptor, producer, photographer, author and activist
• Willa Schneberg (born 1952), American poet
• Willa, protagonist of the French-Canadian animated TV series Willa's Wild Life
• Willa the Butterfly Fairy from the movie Barbie: Mariposa.