Dame Julia Mary Walters DBE (born February 22, 1950), known professionally as Julie Walters, is an English actress, author, and comedian. She is the recipient of four British Academy Television Awards, two British Academy Film Awards, two International Emmy Awards, a BAFTA Fellowship, and a Golden Globe. Walters has been nominated twice for an Academy Award: once for Best Actress and once for Best Supporting Actress.

Walters rose to prominence playing the title role in Educating Rita (1983), a role which she originated in West End theatre. She has appeared in a number of films, including Personal Services (1987), Stepping Out (1991), Sister My Sister (1994), Billy Elliot (2000), the Harry Potter series (2001–2011) as Molly Weasley, Calendar Girls (2003), Wah-Wah (2005), Driving Lessons (2006), Becoming Jane (2007), Mamma Mia! (2008) and Mamma Mia! Here We Go Again (2018), Brave (2012), Paddington (2014) and its 2017 sequel, Brooklyn (2015), Film Stars Don't Die in Liverpool (2017), and Mary Poppins Returns (2018). On stage, she won a Laurence Olivier Award for Best Actress for the 2001 production of All My Sons.

On television, Walters collaborated with Victoria Wood; they appeared together on several television shows, including Wood and Walters (1981), Victoria Wood: As Seen on TV (1985–1987), Pat and Margaret (1994), and Dinnerladies (1998–2000). She has won the British Academy Television Award for Best Actress four times, more than any other actress, for My Beautiful Son (2001), Murder (2002), The Canterbury Tales (2003), and her portrayal of Mo Mowlam in Mo (2010). Walters and Helen Mirren are the only actresses to have won this award three consecutive times, and Walters is tied with Judi Dench for the most nominations in the category with seven. In 2006, the British public voted Walters fourth in ITV's poll of TV's 50 Greatest Stars as part of ITV's 50th anniversary celebrations. She starred in A Short Stay in Switzerland (2009), which won her an International Emmy for Best Actress. Walters was made a Dame (DBE) in the 2017 Birthday Honours for services to drama.