Blizzard of Ozz is a heavy metal album by Ozzy Osbourne, recorded in Surrey, U.K. and released in the U.S. on September 20, 1980 in the UK and on January 15, 1981 in the US.

This is Osbourne's first solo album and one of the two studio albums he recorded before guitarist Randy Rhoads' death in March 1982. The tracks "Crazy Train" and "Mr. Crowley" were released as singles. The former peaked at #9 on the Mainstream Rock Charts and has remained a staple of pop, hard-rock, and classic-rock radio for more than 25 years; it remains Ozzy's most recognizable song.

Blizzard of Ozz remains Osbourne's highest-selling album to date, shifting over 4.1 million copies in the U.S. alone.