"Every Rose Has Its Thorn" is a power ballad by American glam metal band Poison. It was released in October 1988 as the third single from Poison's second album Open Up and Say... Ahh!. The band's signature song, it is also their only number-one hit in the US, reaching the top spot on December 24, 1988, for three weeks. It also charted at number 11 on the Mainstream Rock chart. It was a number 13 hit in the UK.
"Every Rose Has Its Thorn" was named number 34 on VH1's "100 Greatest Songs of the 80s", number 100 on their "100 Greatest Love Songs" and number 7 on MTV and VH1 "Top 25 Power Ballads". Billboard ranked the song No. 5 on their list of The 10 Best Poison Songs.