Sydney Sweeney and Marilyn Monroe are actually ninth cousins, once removed.
The “Euphoria” alum, 29, has often been compared to the late icon, and a new study by MyHeritage shows they’re related.
According to the website’s genealogical research, the actresses are related through their fathers. Sweeney’s dad, Steven Sweeney, and Monroe’s dad, Charles Stanley Gifford, are both descendants of an early settler in Sandwich, Massachusetts, named Ezra Perry.
The two blond bombshells are distantly related, as Perry lived in the 1600s.
Sweeney has made her admiration for Monroe — who died in 1962 at age 36 — known. In February, she sported a vintage dress previously worn by the “Some Like It Hot” star at the Santa Barbara International Film Festival.
The figure-hugging Ceil Chapman design features three-quarter sleeves and ruching details along the waist and side.
Monroe memorably wore the same slinky dress on the Apr. 7, 1952 cover of Life magazine.
Sweeney also previously channeled the Old Hollywood star for the premiere of “The Housemaid” in December 2025 in a custom Galia Lahav dress that resembled Monroe’s iconic white halter dress from 1955’s “The Seven Year Itch.”
A month prior, the “Christy” star rocked a bold bob styled in soft waves recalling Monroe’s “Gentlemen Prefer Blondes” era at the Governors Awards red carpet.
A source told Page Six last month that even Sweeney’s boyfriend, mogul Scooter Braun, thinks she’s “the modern Marilyn Monroe.”
Braun, 45, is fully supportive of his girlfriend’s risqué roles, another source told us in May.
“Scooter has absolutely no issue with Sydney’s more provocative scenes in ‘Euphoria’ or any of the work she does as an actress,” the insider said. “He fully understands that it’s part of her job and respects how dedicated she is to her craft.”
And much like Monroe, Sweeney is no stranger to controversy thanks to her hyper-sexualized image — the latest one being her stripped-down sports betting ad with Novig.
But Sweeney is making no apologies.
She hit back at the backlashlast month by posting even more sultry snaps of the ad campaign on Instagram. She also cheekily shared images of several athletes — including Serena Williams, Ronda Rousey, Karl-Anthony Towns, Jason Kelce and more — who have posed sans clothing for different covers of ESPN’s Body Issue on her Instagram Stories.
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