Crazy Horse is an American rock band best known for their association with the musician Neil Young. Since 1969, fifteen studio albums and eight live albums have been billed as being by Neil Young and Crazy Horse. They have also released six studio albums of their own between 1971 and 2009.

Billy Talbot (bass) and Ralph Molina (drums) have been the only consistent members of the band across its fifty-five years. Founding guitarist Danny Whitten died in 1972 after recording two studio albums, Everybody Knows This Is Nowhere (with Young) and Crazy Horse. Except for two notable intervals, Frank "Poncho" Sampedro (rhythm guitar) regularly performed with the group from 1975 until 2014. On four of Crazy Horse's stand-alone studio albums, Talbot and Molina serve as the rhythm section to different sets of musicians.

Following Sampedro's retirement, Nils Lofgren, an early member of Crazy Horse between 1970 and 1971, rejoined the group. The quartet of Young, Talbot, Molina and Lofgren recorded three studio albums between 2019 and 2022. In 2024, guitarist Micah Nelson, who had previously played with Young in Promise of the Real, replaced Lofgren.