List of UK Rock & Metal Singles Chart number ones of 2011

The UK Rock & Metal Singles Chart is a record chart which ranks the best-selling rock and heavy metal songs in the United Kingdom. Compiled and published by the Official Charts Company, the data is based on each track's weekly physical sales, digital downloads and streams. In 2011, there were 20 singles that topped the 53 published charts. The first number-one single of the year was 2003's "Christmas Time (Don't Let the Bells End)" by The Darkness, which topped the chart published on Boxing Day 2010. "Christmas Time (Don't Let the Bells End)" was also the final number-one single of the year, topping the final chart of the year published on Christmas Day.

The most successful song on the UK Rock & Metal Singles Chart in 2011 was "Iris" by Goo Goo Dolls, which spent ten weeks at number one across three different spells. "Bring Me to Life" by Evanescence was number one for five weeks in 2011, while the band also topped the chart with "My Immortal" (two weeks) and "What You Want" (one week). Muse spent seven weeks at number one with "Feeling Good", as did Foo Fighters with "Walk" (three weeks), "Best of You" and "Arlandria" (two weeks each). My Chemical Romance were number one for five weeks in 2011, four of which were with "Sing". "Sweet Child o' Mine" by Guns N' Roses was also number one for four weeks, while Nickelback's "When We Stand Together" was number one for three. "Christmas Time (Don't Let the Bells End)" spent two weeks at number one during 2011.