Jamie Lynn Marie Spears (born April 4, 1991 in McComb, Mississippi) is an American actress and singer.

Spears appeared in 2001's Totally Britney Live and in a Pepsi television commercial in 2002. In the same year, she appeared briefly in the movie Crossroads as the younger version of the main character, Lucy, who was played by her older sister, pop singer Britney Spears. Their mother in the movie was played by Kim Cattrall. Their real life mother is Lynne Spears, who lives with Jamie Lynn in Kentwood, Louisiana.

For two seasons, Jamie Lynn was a cast member on the television program All That, which she obtained after publicly stating her desire to be on the show in an interview. Some fans of the show called this nepotism, although she was not related to the producers on the show. She left the show in 2004.

She currently stars in a show on Nickelodeon called Zoey 101. Jamie Lynn stars as one of the first girls to enter a formerly all-male boarding school. Zoey 101 drew record numbers with the premiere of the show, which gave the kids channel 1.6 million viewers age 9-14, its biggest viewership in the demographic for a premiere in eight years. Jamie Lynn sings the show's theme song, "Follow Me", written by her sister Britney.

In 2005, she appeared on the cover of two Seventeen magazines; in interviews she noted that, though she admires Britney for working so hard, she wants to make her own way. She currently attends Parklane Academy, located in McComb, Mississippi where she is a high school freshman.