Jenna Morasca (born February 15, 1981) is an American emergency veterinary nurse supervisor and former actress, swimsuit model, professional wrestler, and reality television personality. She is best known for winning the sixth season of the reality competition series Survivor, Survivor: The Amazon, in 2003. She also appeared on Survivor: All-Stars in 2004, in which she placed 16th, and on the 19th season of The Amazing Race in 2011 along with her then-boyfriend and Survivor: Africa winner Ethan Zohn, in which they placed tenth.

Jenna Morasca was born in Pittsburgh, Pennsylvania, on February 15, 1981, to Carla and Michael Morasca. She is an only child. Before appearing on Survivor, Morasca was a college student at the University of Pittsburgh, where she was initiated into Zeta Tau Alpha.

Morasca graduated from South Fayette High School in 1999, and studied at Duquesne University for two years before transferring to University of Pittsburgh.

Morasca first competed on Survivor in the show's sixth season, Survivor: The Amazon. Filmed in the Amazon rainforest in 2002. The season's tribes were split by gender so Morasca was initially placed on Jaburu (women's tribe) alongside Deena Bennett, Jeanne Hebert, Janet Koth, Shawna Mitchell, Christy Smith, Heidi Strobel, and Joanna Ward, as its youngest member.

At the beginning of the game, Morasca formed a friendship with Strobel and Mitchell as they were the youngest women on the tribe. Despite her lack of work ethic rubbing some the wrong way, she survived the tribe's two visits to tribal council.

A tribe switch resulted in Morasca, Bennett and Mitchell remaining on Jabaru, now accompanied by Alex Bell, Rob Cesternino, and Matthew von Ertfelda. The new tribe won the following challenge, but lost on day 18 where Mitchell was voted out for her closeness with Bell.

On day 19, the tribes merged into the Jacaré tribe. During the first immunity challenge, Morasca and fellow contestant Strobel stripped off their clothes for peanut butter and chocolate. Morasca's alliance now with Bell, Cesternino and Strobel managed to control multiple votes, namely Roger Sexton, Dave Johnson, and Bennett. At the Final Seven, Cesternino betrayed his alliance by voting out Bell. At the Final Six, Morasca and Strobel scrambled to stay in the game, trying to break up the alliance of Cesternino, Matthew von Ertfelda and Butch Lockley. When Christy Smith would not commit to either side, Cesternino convinced Morasca and Strobel to help vote out Smith, who was later voted off. At the Final Five, Strobel was voted out, but Morasca won the next immunity, allowing her to advance to the Final Three. Morasca, Cesternino and von Ertfelda voted out Lockley. Morasca won the key final immunity challenge which gave her the sole power to eliminate either Cesternino or von Ertfelda and eventually eliminated Cesternino. Morasca beat von Ertfelda in a 6–1 vote to become the Sole Survivor. Morasca was the youngest contestant to ever win Survivor until Jud "Fabio" Birza won Survivor: Nicaragua in 2010, though Morasca remains the youngest female contestant to win Survivor.

Morasca's winning game got her cast on the show's first all-star edition Survivor: All-Stars. Where she was sorted into the Mogo Mogo tribe alongside Colby Donaldson, Richard Hatch, Shii Ann Huang, Lex van den Berghe, and Kathy Vavrick-O'Brien. Morasca was initially in little danger as her tribe won immunity in the first two episodes. In Episode Three, Morasca decided to quit the game, out of a desire to be with her dying mother, who had been battling cancer for 12 years, making her the third person eliminated from the competition. Her mother died eight days after Morasca returned home.