Jessica Marie Alba (; born April 28, 1981) is an American actress and businesswoman. She began her television and movie appearances at age 13 in Camp Nowhere and The Secret World of Alex Mack (1994), but rose to prominence at 19, as the lead actress of the television series Dark Angel (2000–2002), for which she received a Golden Globe nomination.Her big screen breakthrough came in Honey (2003). She soon established herself as a Hollywood actress, and has starred in numerous box office hits throughout her career, including Fantastic Four (2005), Fantastic Four: Rise of the Silver Surfer (2007), Good Luck Chuck (2007), The Eye (2008), Valentine's Day (2010), Little Fockers (2010), and Mechanic: Resurrection (2016). She is a frequent collaborator of director Robert Rodriguez, having starred in Sin City (2005), Machete (2010), Spy Kids: All the Time in the World (2011), Machete Kills (2013), and Sin City: A Dame to Kill For (2014). Since 2019, Alba stars in the Spectrum action crime series L.A.'s Finest.
Alba co-founded The Honest Company, a consumer goods company that sells baby, personal and household products. Magazines including Men's Health, Vanity Fair and FHM have included her on their lists of the world's most beautiful women.
She is also known as Jessica Marie Alba.