"Numb/Encore" is a song by the rock band Linkin Park and rapper Jay-Z from their 2004 mashup album Collision Course. It was the most successful single from the album, going on to reach #20 on the Billboard Hot 100 on February 1, 2005.

"Numb/Encore" was released as a single that year, combining the Jay-Z song "Encore" (taken from his 2003 album The Black Album) and the Linkin Park song "Numb" (taken from their 2003 album Meteora). This version still contains Kanye West's background vocals from "Encore".

In the UK Singles Chart, the single achieved the record for the longest stay in the top 20 without ever reaching the top 10. The song only peaked at 14 but managed to spend 53 weeks in the chart, 13 of them in the top 20.
The video for the mash-up was nominated for the MTV VMA Viewer's Choice award in late July 2005. "Numb/Encore" won Best Rap/Sung Collaboration at the Grammy Awards of 2006. The show featured a performance of the song, during which Paul McCartney made a surprise appearance and came onto the stage to perform a duet with Chester Bennington of The Beatles' song "Yesterday". "Yesterday" replaced "Numb" after the first rap verse of the mash-up.