"White Flag" is a song by English singer-songwriter Dido, released as the lead single from her second studio album Life for Rent on 1 September 2003. The song is considered one of her signature songs, and helped Life for Rent sell over ten million copies worldwide. The song was nominated for the Best Female Pop Vocal Performance at the 46th Grammy Awards, but lost to Christina Aguilera's "Beautiful". It won the Best British Single at the 2004 Brit Awards.

The song ranked on Blender's list "The 500 Greatest Songs Since You Were Born" at number 317. The single fared very well on the charts around the world, peaking at number one in Australia, Austria, Germany, Italy, and Norway; number two on the Irish Singles Chart, and number 18 on the US Billboard Hot 100. The song reached number two in the UK being kept off the top spot by the UK top selling single of the year, "Where Is the Love?". The music video, directed by Joseph Kahn features actor David Boreanaz as Dido's love interest.