The mark the milestone event the former X Factor judge posted a photo from the couple's wedding day in Hawaii in 1982.
"Happy 32nd anniversary to my darling @OzzyOsbourne," Sharon captioned the image. "Oh how time flies! #FlashbackFriday".
Sharon and Ozzy Osbourne
Ozzy, 65, and Sharon, 61, first met when she was 18 and working for her father Don Arden whose company managed Ozzy's band Black Sabbath.
Sharon later became the band's manager and following a three-year romance the couple wed in Maui, Hawaii.
The couple in 2012
The duo are parents to Aimee, Kelly and Jack and grandparents to Jack's daughter Pearl.
Ozzy, whose real name is John Osbourne, is also father to two biological children and an adopted son from his marriage to Thelma Reese.