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

Walters rose to fame playing the lead role in Educating Rita (1983), a role she first played in the 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 film 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 the Laurence Olivier Award for Best Actress for the 2001 production of All My Sons.

On television Walters collaborated with Victoria Wood; they appeared together in 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 received the BAFTA television award for Best Actress four times — more than any other actress — for My Beautiful Son (2001), Murder (2002), The Canterbury Tales (2003) and for her portrayal of Mo Mowlam in Mo (2010). Walters and Helen Mirren are the only actresses to have won this award three times in a row, and Walters shares first place with Judi Dench for the most nominations in this category — seven. In 2006 the British public placed Walters fourth in ITV's poll "50 Greatest Television Stars" as part of the celebrations of ITV's 50th anniversary. She appeared in A Short Stay in Switzerland (2009), which brought her an International Emmy award for Best Actress. Walters was appointed a Dame (DBE) in the 2017 Birthday Honours for services to drama.