Don’t mess with Hilaria Baldwin.

The entrepreneur, who is married to Alec Baldwin, called out a “cruel” A-lister she accused of bad-mouthing her loved ones.

In her new book “Manual Not Included,” she wrote about an unnamed “famous person, someone [she’s] never met, who said nasty and untrue things about [her] and [her] family,” according to People.

Hilaria, 41, subtly hinted at the celeb, saying the person mentioned her family in a “show” and “even tried to bait [her] and Alec via Instagram.”

“We didn’t engage with her and I guess I am proud of that,” she added. “It made me mad at the system, but here, in this book, is where I can talk about it.”

“I don’t need to use her name and I don’t want any problems with her, and I would like to be left out of any articles that mention her, because she has nothing to do with me. A total stranger.”

Hilaria claimed she “became very sick with stress” when the person’s show was released, especially after a comment left one of her seven kids in tears.

“It gutted me because I couldn’t understand how someone could be so inherently cruel,” she continued.

“I don’t need an apology,” the former yoga instructor added. “No matter what, I hope I never meet her.”

It’s unclear who Hilaria was talking about, but comedian Amy Schumer, 43, mentioned the Baldwin clan in her June 2023 “Emergency Contact” Netflix special.

“I’m not trying to bully a sociopath — I have a point,” the comedian said about Hilaria faking her Spanish heritage.

“My point is that all evidence points to this woman, since she met her husband, has straight-up pretended to be from Spain.”

Schumer poked fun at “Hilaria from España” actually being “Hillary from Boston.”

The actress joked that Hilaria and Alec, 67, gave their “von Trapp amount of children … Spanish names like Jamón and Croqueta and Flamenco” despite Hilaria being from Massachusetts.

Schumer also claimed that the couple “don’t give a f–k” about the “Departed” star shooting and killing “Rust” cinematographer Halyna Hutchins.

That same month, Hilaria called out Schumer for being “cruel to another person.”

Reps for the “I Feel Pretty” star weren’t immediately available to Page Six for comment.