Posting the throwback on Instagram – in which the A-list mum can be seen wearing a beautiful bronze blazer suit as she looks at the camera – Demi wrote: "One of my favourites... from 25 years ago!"
WATCH: Demi Moore has revealed she sleeps with her seven dogs
It didn't take her social media followers long to rush to the comment section to point out just how much she looks like her daughter.
Demi shared the photo on Instagram
"Rumer is your mini-me! Incredible how much you look alike at that age," wrote one.
"You look just like your daughter Rumer," added another, with a third saying: "I see Rumer."
The resemblances between the Ghost star, 58, and her daughters Rumer, 32, Scout, 29, and Tallulah, 26, are uncanny, and often noticeable in photos shared by Demi.
Last month, the actress uploaded a black-and-white picture with her daughters, showing the raven-haired siblings and their famous mother sat in the back of a pick-up truck in a woodland setting.
Demi and her daughters
While they all had their individual sense of style, there was no denying the similarity in their features.
"Thankful for my girls. Hope everyone had a great holiday weekend!" Demi captioned the photo.
Demi shares her children with her ex-husband, Bruce Willis, who she has maintained a great relationship with despite their break up in 2000.
Demi went on to marry Ashton Kutcher in 2005, but their relationship ended in 2013.
Bruce, meanwhile, married his wife Emma Hemming in 2009, and welcomed two daughters with her, Mabel, eight, and Evelyn, six.
They often all spend time together and Bruce even spent some of the COVID-19 lockdown with his ex-wife and three oldest daughters in Idaho.