The pair, who have been together for more than five decades, both marked the very special anniversary on social media.
Ozzy shared a snap of them on their wedding day in Hawaii, as he rocked an all-white suit with a string of leaves around his neck and shaggy blonde hair as Sharon looked up at him lovingly.
He wrote alongside it: “40 Years Ago Today! Happy Anniversary My Love.”
Sharon shared a more recent photo of her and Ozzy posing together in all-black outfits, holding hands in front of a fireplace.
She told her followers: “2022 is a special year for me. It marks 40 years of marriage to my darling Ozzy.
“We first met when I was 18, over 52 years we have been friends, lovers, husband & wife, grandparents and soulmates. Always at each other’s side.”
Sharon also signed off by spelling her name the way Ozzy would famously yell it on their family reality show The Osbournes, adding: “I love you Ozzy ~ Sharrrrrrron x.”