Miley Ray Cyrus ( MY-lee SY-rəs, born Destiny Hope Cyrus on November 23, 1992) is an American singer, songwriter, and actress. Regarded as a pop icon, she has been recognized for her evolving artistry and style, having been dubbed the "Teen Queen" of the 2000s. Cyrus is also cited as one of the few examples of a child star with a successful musical career as an adult. As the daughter of country singer Billy Ray Cyrus, she emerged as a teen idol at age 13 as the lead character in the Disney Channel television series Hannah Montana (2006–2011). As Hannah Montana, she achieved success on the Billboard charts with two number-one soundtracks and a US top-ten single.

Cyrus's solo career started with the US number-one pop rock albums Meet Miley Cyrus (2007) and Breakout (2008), featuring the top-ten singles "See You Again" and "7 Things". The EP The Time of Our Lives (2009) reached number two in the US while its lead single "Party in the U.S.A." became one of the best-selling singles of all time in the country and was later certified 14-times platinum by the RIAA. The ballad "The Climb" also reached number four in the US. Trying to establish a mature image, she explored dance-pop in Can't Be Tamed (2010), which received mixed reviews; its title track reached the top-ten in the US. Cyrus later signed with RCA Records and took a new artistic direction with the hip-hop and R&B-influenced Bangerz (2013). It became her fifth chart-topping album, and yielded the singles "We Can't Stop" and her first Billboard Hot 100 number-one, "Wrecking Ball". She then dabbled in experimental styles on Miley Cyrus & Her Dead Petz (2015), embraced country pop on Younger Now (2017), and ventured into rock and synth-pop on Plastic Hearts (2020). After signing with Columbia Records in 2021, Cyrus released her eighth studio album Endless Summer Vacation (2023). Its lead single "Flowers" topped charts internationally, set various records, and marked her second US number-one. The song won two Grammy Awards including Record of the Year, and the album was nominated for Album of the Year.

Apart from music, Cyrus starred in the films Bolt (2008), Hannah Montana: The Movie (2009), The Last Song (2010), LOL (2012), and So Undercover (2013), and appeared briefly in Guardians of the Galaxy Vol. 2 (2017) and Drive-Away Dolls (2024). On television, she produced and appeared in the documentary, Miley: The Movement (2013), served as a coach on The Voice (2016–2017), starred in the "Rachel, Jack and Ashley Too" episode of Black Mirror (2019), hosts the yearly holiday special Miley's New Year's Eve Party (2021–present), and starred in and executive produced the documentary concert special Endless Summer Vacation (Backyard Sessions) (2023). In 2014, Cyrus founded the non-profit Happy Hippie Foundation, which was supported by the web video series Backyard Sessions (2012–2023).

Cyrus has received numerous accolades, including two Grammy Awards, one Brit Award, five Billboard Music Awards, three MTV Video Music Awards, and eight Guinness World Records. She has appeared in listicles such as the Time 100 (2008 and 2014) and Forbes 30 Under 30 (2014 and 2021). Billboard ranked her as the ninth-greatest Billboard 200 female artist and the 62nd greatest artist of all time. Cyrus is the eighth-highest-certified female digital singles artist by the RIAA, and one of the most successful artists of the 2010s according to Billboard.