When it comes to their ancestry, it's no secret plenty of celebs have mixed heritage and a lot of them have also revealed just what it is over the years. When it comes to Irish ancestry, it certainly seems as if Hollywood is full of stars who have Irish blood — and if you don't believe us just keep scrolling.

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Of course, there are also musicians, models, and even politicians with Irish blood running through their veins — and some of those like Miley Cyrus, Emily Ratajkowski, and Barack Obama have certainly made it on today's list!

10 Mariah Carey

Mariah Carey 2020
via: billboard.com

Kicking the list off is none other than musician Mariah Carey who has certainly inspired plenty of other stars with her music. One thing that plenty may not know about the popular diva is that she actually has Irish descent from her mother Patricia's side. Mariah Carey rose to fame in the 90s with her hits "Hero", "Without You", "All I Want for Christmas Is You", "Fantasy", and "Always Be My Baby" — and she has been a staple in the pop music industry ever since.

9 Meryl Streep

Meryl Streep attends an event
via: gettyimages.com

Another famous celebrity who has Irish ancestry from her mother's side is Hollywood legend, Meryl Streep. Meryl debuted as an actress in the 70s with roles in movies like Julia and Kramer vs. Kramer. Since then, the actresses starred in plenty of critically acclaimed and extremely successful movies such as Adaptation, The Hours, The Devil Wears Prada, Mamma Mia!, Julie & Julia, Into the Woods, Little Women, and The Iron Lady.

8 Emily Ratajkowski

Emily Ratajkowski
via: pinterest.com

Let's move on to model Emily Ratajkowski who is yet another famous woman that many may not know actually has Irish ancestry.

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Emily rose to fame in the early 2010s after starring in music videos such as Robin Thicke's "Blurred Lines" and Maroon 5's "Love Somebody". Since then, the fashionable model has walked plenty of runways all across the globe and grace countless prestigious magazine covers.

7 Barack Obama

Barack Obama
via: gettyimages.com

Next on the list is none other than former President of the United States Barack Obama. Something that many may not know about the politician is that his mother Ann actually has some Irish blood, which definitely means that Barack Obama — who served as the 44th president of the United States from 2009 to 2017— also has Irish ancestry.

6 Anne Hathaway

Anne Hathaway poses on the red carpet
via: gettyimages.com

A celebrity who has Irish ancestry from both her mother's and father's side is Hollywood star Anne Hathaway. Anne rose to fame in the early 2000s after starring in the Disney comedy The Princess Diaries. Since then, Anne established herself as a staple in the movie industry and she starred in countless blockbusters such as Havoc, Brokeback Mountain, The Devil Wears Prada, Bride Wars, Love & Other Drugs, The Dark Knight Rises, Alice in Wonderland, and Les Misérables.

5 Lindsay Lohan

Lindsay Lohan IG photo

Let's move on to former teen star Lindsay Lohan who is also of Irish descent. Lindsay rose to fame in the late 90s after she starred in the popular family movie The Parent Trap. In the early 2000s, the actress became a teen icon with roles in movies like Life-Size, Get a Clue, Freaky Friday, Confessions of a Teenage Drama Queen, and Mean Girls. Lindsay's career has certainly slowed down since — but there is no doubt that her fans still absolutely adore her!

4 Brad Pitt

brad pitt was once banned from another country
via: people.com

Another super-famous Hollywood star who has Irish ancestry is actor Brad Pitt. Brad rose to fame in the 90s with roles in movies like A River Runs Through It, Legends of the Fall, Interview with the Vampire, Seven, and 12 Monkeys — and since then he also established himself as a staple in the movie industry.

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Today, Brad is one of the most talented actors of his generation and he has starred in numerous blockbusters such as Fight Club, Ocean's Eleven, Mr. & Mrs. Smith, World War Z, Once Upon a Time in Hollywood, Moneyball, and The Curious Case of Benjamin Button.

3 Miley Cyrus

Miley Cyrus Interview
via: usmagazine.com

Next on the list is former Disney Channel star Miley Cyrus who has Irish ancestry from both of her parents' sides. Miley rose to fame in the 2000s after she starred in Disney Channel's popular sitcom Hannah Montana —and ever since Miley has been in the spotlight. Today, Miley is mostly known as a musician and over the years she has released seven studio albums.

2 Hilary Duff

Hilary Duff, Younger
via Vulture

Another former Disney Channel star who has Irish ancestry is actress Hilary duff. Just like Miley Cyrus, Hilary also rose to fame in the 2000s after she portrayed the titular character in Disney Channel's popular show Lizzie McGuire. After that, Hillary managed to become a major teen star with roles in movies like Agent Cody Banks, Cheaper by the Dozen, and A Cinderella Story.

1 Sandra Bullock

Sandra Bullock
via: etonline.com

Wrapping the list up is yet another Hollywood star who has Irish ancestry — this time we're talking about actress Sandra Bullock. Sandra rose to fame in the 90s with roles in movies like Speed, While You Were Sleeping, Hope Float, and A Time to Kill. Since then Sandra has become an Academy Award-winning actress and she has starred in numerous critically acclaimed movies such as Ocean's 8, Crash, Bird Box, The Blind Side, and Gravity.

Next: 10 Celebs Who Are Actually British