"Have You Forgotten?" is a song about the September 11 attacks recorded by American country music artist Darryl Worley, who wrote it with Wynn Varble. It was released in March 2003 as the first single and title track from his 2003 compilation of the same name. It was No. 1 on Billboard's Hot Country Songs for seven weeks, reaching it after five weeks on the chart, and peaked at number 22 on the Billboard Hot 100, making it Worley's biggest mainstream hit.

In December 2002, Worley performed for United States soldiers in Afghanistan and Kuwait. Worley debuted the song at the Grand Ole Opry during performances on January 10 and 11, 2003. After Worley's Grand Ole Opry performance, a live recording was made available online, followed later by a studio recording. The song quickly grew in popularity, and the single was widely requested by country radio listeners before it was commercially available. In the weeks before the US-led invasion of Iraq, some stations were hesitant to play the song because of its perceived pro-war message, but by March 3, 2003 it had been played by 128 of the 150 country stations that report to Billboard.

Worley appeared on The Today Show on February 28, 2003, and performed the song on Lou Dobbs Moneyline on March 11, 2003. Worley performed to a standing ovation at the CMT Annual "Flameworthy Music Awards" on April 7, 2003. On April 16 of that year he was introduced by Defense Secretary Donald Rumsfeld before performing the song at the Pentagon. A report from the American Forces Press Service said the performance brought tears to Rumsfeld's eyes.

According to contemporary articles, listeners believed the song suggested "a link between al Qaeda leader Osama bin Laden and Iraqi President Saddam Hussein," and writers for various publications have alleged the same. The Village Voice called the song an "attempt to tie together the Sept. 11, 2001, terrorist attacks and the run-up to the Iraq war,"The Los Angeles Times said the song has a "pro-war call to action," and The Chicago Tribune said the song "essentially reads like a Bush position paper for entering Iraq with guns blazing." The Hartford Courant described the song as "a plea that thinly links the Sept. 11 terrorist attacks with the need to bomb Iraq," and "a page ripped right out of a White House briefing."

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