There she is . . . Miffed America.

Cara Mund, the 2018 winner of the Miss America pageant, has traded in her crown for boxing gloves, blasting higher-ups as nothing more than mean girls who bullied, belittled and muzzled her.

“About two weeks ago, I started researching workplace bullying . . . Ultimately, this is my year in a nutshell,” the former Miss North Dakota wrote to former Miss Americas in a lengthy letter made public Friday.

“Our chair and CEO have systematically silenced me, reduced me, marginalized me, and essentially erased me in my role as Miss America in subtle and not-so-subtle ways on a daily basis,’’ Mund said, referring to Gretchen Carlson, who chairs the Miss America board of directors, and the pageant’s CEO, Regina Hopper.

When they weren’t criticizing her clothes or “accidentally” calling her “Kira” in front of contestants, pageant honchos were one-upping her in front of the cameras, said Mund, 24.

The Brown University grad said that when she hinted at her unhappiness last month in a newspaper interview, in which she called it “a tough year,” she was immediately retaliated against, with her appearance at next month’s pageant cut to 30 seconds.

“I haven’t felt like Miss America for the last eight months, and now, they are even taking away my goodbye,’’ Mund wrote.

She also said she was ripped for daring to wear outfits “too many times” and barred from dressing in pink.

“My tour manager would come into my hotel room and pick out the clothes I was allowed to wear, saying things like, ‘Regina really likes this one,’ or ‘You can’t wear pink. Regina hates pink,’ ” Mund wrote.

“During a photo shoot this year, Regina looked at the Karl Lagerfeld dress I was wearing and said, ‘Yuck. You should burn that. Don’t ever wear that again.’ ”

Mund said that while the pageant touts itself as pro-woman and claims to be turning around its sexist image, she has been all but drowned out.

“My voice is not heard nor wanted by our current leadership, nor do they have any interest in knowing who I am and how my experiences relate to positioning the organization for the future,” she wrote.

“The rhetoric about empowering women, and openness and transparency, is great; however, the reality is quite different,” Mund said.

“Right away, new leadership delivered an important message: There will only be one Miss America at a time, and she isn’t me,” she claimed, referring to Carlson’s past as the crown winner in 1989.

“To reinforce this, they told me that I’m not important enough to do big interviews, and that the major press is ‘obviously’ reserved for Gretchen.”

The Miss America Organization said it “supports Cara.”

“It is disappointing that she chose to air her grievances publicly, not privately. Her letter contains mischaracterizations and many unfounded accusations. We are reaching out to her privately to address her concerns,’’ the group said in a statement.

Mund, Carlson and Hopper did not return phone calls from The Post.