"Every Time Two Fools Collide" is a song written by Jan Dyer and Jeff Tweel, and recorded by American country music artists Kenny Rogers and Dottie West. It was released in January 1978 as the first single and title track from the album Every Time Two Fools Collide. The song reached No. 1 on the Billboard Hot Country Singles chart that spring, and established Rogers and West as a popular male-female duo pairing in country music.

"Every Time Two Fools Collide" was meant to be recorded only by Dottie West, as a follow-up to her previous hits from 1977 under her new record company United Artists. Kenny Rogers was under the same label as West at the time, and they were both being produced under Larry Butler. According to legend, West was recording the song in the United Artists studio, when Rogers turned up early to meet West. However, this was disputed by Rogers. According to him, West was supposed to have finished recording material at 10:00 AM, and Rogers was to have started at the same time. When West's session ran over, Rogers ended up sitting in the studio waiting. They began talking about recording a duet, and West suggested "Every Time Two Fools Collide". They both agreed, and together West and Rogers made the song a duet recording. Another version of the event was told by producer Larry Butler in a 2006 interview. He claims that after Rogers had turned up to the studio it was West who approached Rogers saying she was a fan of his music and that she would consider it an honor to record with him someday. Butler then claimed that Rogers asked if he had any material he felt they could do together and told Rogers to sing the second verse of "Everytime Two Fools Collide".

Released in early 1978, the song hit No. 1 on the Hot Country Songs list that year, for two weeks, and was West's first No. 1 and one of Rogers' many No. 1s. The song became one of the pair's best-known songs, and also became one of Country music's classic duet recordings. That year, they released an album of the same name, which became a Gold-certified album. Their association would last three years, setting the trend for a string of country hits, including 1981's "What Are We Doin' in Love". Thanks in part to the success of this song, Rogers and West won the CMA Awards' coveted Vocal Duo of the Year award later that year.

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