The Dio E.P.

Dio discography
Lead Singer Ronnie James Dio "throwing horns", a gesture commonly used by both artists and fans of heavy metal music
Studio albums	10
Live albums	7
Compilation albums	13
Video albums	9
EPs	1
Singles	14

The following is a comprehensive discography of Dio, an American heavy metal band led by vocalist Ronnie James Dio. Dio was formed in 1982 after Ronnie James Dio and drummer Vinny Appice left Black Sabbath. The band went through frequent personnel changes. The final line-up consisted of Dio (vocals), Craig Goldy (guitars), Rudy Sarzo (bass), Simon Wright (drums) and Scott Warren (keyboards).

The band's debut album Holy Diver (1983) peaked at number 61 on the Billboard 200 and was certified platinum in the United States. The first single "Holy Diver" charted at seventy-two in the United Kingdom, followed by "Rainbow in the Dark" which reached forty-six. Their follow-up album The Last in Line (1984) charted higher, reaching number twenty-four in the US, and went platinum in the US. "Mystery" was the only single that charted. Sacred Heart (1985) reached gold status in the US, and was the last Dio album to achieve any sales certifications. The single "Rock 'N' Roll Children" charted at 26 in the UK, the band's best performing single. in 1987, the band released Dream Evil. The single "I Could Have Been a Dreamer" was the band's last to chart in the US, reaching 33. For Lock up the Wolves, the band released their last chart single "Hey Angel", which reached 94 in the UK. In 2002, the band released Killing the Dragon. It reached 199, and was the last to chart in the US.