She was just STUNNINGLY beautiful as a young woman. A face like none other I've ever seen. I can look at picture after picture of her. Her looks faded with time though, as do most people's.

In her prime, Olivia was the world's most beautiful woman.

She's definitely in the top 10.

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Get lost LM.
According to her pics here on IMDB she still looks great let alone how she looked in the 70s.
But when someone thinks KK, LT or even SJ look better than her, even compared to her looks nowadays, i recomment an eye specialist.

What a load of beep She has mediocre looks and zero acting talent-her career says it all. Looks really old now, not aged well

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YES she is definately the most beautiufl woman in the world, her eyes are amazing.

Nowadays I find Liv Tyler and Keira Knightley one of the most beautiful women walking on this earth, but back when Olivia was young - she certainly was absolutely stunning.

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She was really beautiful in Ivanhoe

She is gorgeous.
"May the forces of evil become confused on the way to your house."

I'm torn between Olivia and Charlotte Rampling who are both my favourite actresses and are still beautiful in their advancing years.
Terry Thomas: "You're an absolute shower"

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a beauty she truly is!
there are many annoying teenage girls there (i'm a teenager myself but not one of those) who keep saying that the squeaky girl from highschool musical reminds them of olivia hussey just because leonard whiting "looks like" zac efron. all i can do whenever i read such things is roll my eyes because the girl looks NOTHING like oliva hussey, and zac efron resembles leonard by only a tiny bit since zac looks."girlier" than leonard (i slowly realized that the more i watch romeo and juliet). i dont think there is a girl out there who looks like her, her beauty is so unique.

She's an ethereal beauty.

The most beautiful woman ever?
I agree with this post %1,000,000,000,000!!!
"I know he can see me"- When A Stranger Calls (2006)

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Actually, she lost her looks quite early in life. Shame.
You can't hold a candle to Gulbenkian.

Not anymore, she's aged terribly.
XXAnthony

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She is gorgeous. Even in her 50s she is beautiful.
She's addicted to what Angel's dick did.
LOVE JACK MERCER 4EVER!

I agree with that. Most women tend to look their best mid- to late-20's (or even early 30's), when they've matured into confident adults but are still retaining some of their youthful, girly glow, resulting in the best possible balance of having lost their awkwardness/baby fat but not showing tiredness. Jennifer Aniston, Lucy Liu, Kate Hudson, Angelina Jolie, Naomi Watts, Kate Winslet, Cameron Diaz, Emily Blunt, Penelope Cruz, Anne Hathaway, Keira Knightley, Nicole Kidman, Katherine Heigl, Rachel McAdams, Natalie Dormer, Sandra Bullock, Eva Longoria, Halle Berry, Jessica Alba, Jennifer Lopez, Evangeline Lilly, Amanda Seyfried, and many more are all good examples. (I call these people rom-com actresses, because most Hollywood stars who starred in rom-coms last decade were within that age range and at their healthiest, strongest, and most confident.)
Other women tend to get better with age (think Monica Bellucci, who had an adult-looking face from a young age, or Salma Hayek), and still others peak in their mid-teens because they have that perfect prettiness and delicate bone structure that's also bitchy and hot, but it doesn't translate as well into adulthood (eg. Vanessa Hudgens, Natalie Portman, Mischa Barton, Hilary Duff, Brooke Shields, Lucy Hale, the Olsen twins, Kirsten Dunst, Selena Gomez, Emma Roberts, Mena Suvari, Victoria Justice, and I guess Olivia Hussey).
Also, some are insanely hot for a short period of time in their early 20's but not as much before or after, because they had too much baby fat before and aged quickly after (Scarlett Johansson, Emilia Clarke, Sarah Michelle Gellar, Julia Roberts, Britney Spears, Kelly Clarkson). Very few women, like Diane Lane or Julie Andrews, remain absolutely beautiful their whole lives with no adjustment stages, it's kind of unfair.