Dozens of swoony loony Luigi Mangione fans stood for hours in frigid temps outside Manhattan court Monday — some camping there since Saturday — in a desperate bid to catch a glimpse of the alleged killer.

The ghoulish goo-goo-eyed supporters, including several dressed as the Luigi character from Super Mario, lined up outside the courthouse, where the Ivy League accused assassin appeared before a judge.

Mangione, the 27-year-old scion of a wealthy Maryland family, is charged with brazenly executing the head of America’s largest health-care company on a Midtown sidewalk a year ago.

“We’ve been camping out since Saturday at 9 p.m.,’’ said a young woman named Ashley who is part of a trio dubbed “The Mangionistas.’’

Her pal April told The Post, “We done this a few times.

“I froze my ass off last time so I brought a heater, a tent, everything,’’ said April, an Instagram “activist” who along with Ashley and third buddy Leena eventually got into court to watch the objection of their affection appear at a crucial pre-trial evidentiary hearing.

“I’m very pleased to see that [Mangione] is unshackled and wearing regular human clothing,’’ April said.

Leena, an Instagram singer, said she thinks the evidence against Mangione was planted.

“I have a couple of theories about what could be going on there,” she said. “Basically, I feel like if Luigi is the guy, he was too smart to just be found five days later with all this evidence on him.”

Swarms of Mangione’s followers have packed every single one of his court hearings since his arrest in December 2024.

Critics have only watched in disgust.

“The only question after the assassination and its immediate celebration is: What the heck is going on with America’s moral compass?” Manhattan Institute fellow Hearth Mac recently told the Wall Street Journal.

Jennifer Coffindaffer, a News Nation contributor and former FBI investigator, wrote on X before Monday’s hearing, “Why do millions of women support Luigi Mangione?

“Because he is hot. If he looked like Crooks, he would have 0 Fan base,” she said, referring to Thomas Crooks, the bespectacled geeky-looking man who tried to assassinate then-presidential candidate Donald Trump in Pennsylvania in July 2024.

But Jonathan Garthrelle, 36, of Jamaica, Queens, stood outside court Monday declaring, “We are living in a time of rampant human-rights violations.

“We’re seeing it left and right. If they can violate the rights of an attractive white male, what hope do the rest of us have?” he said.

Jasmin Flores, a 29-year-old personal chef from East Harlem, even coughed up for a $150 Uber just to snag a spot in line.

“It’s important for me to be here because he’s innocent,” she insisted — despite Mangione alleging being caught on video at the scene of the crime and later with the murder weapon.

Alexa Modugno, a 35-year-old Manhattanite, lamented that she fell just short of making it into the courtroom to see Mangione.

“I was two tickets away,” she said.

“To get into court, they gave out tickets to people in line. It cut off at 24. I was 26. I’m just here to support Luigi and fight against stigma against mental-health issues.”

Mangione has become a bizarre folk hero — crowdfunding more than $1.3 million for his legal costs — after evidence emerged that the victim, UnitedHealthcare CEO Brian Thompson, was killed in a targeted hit that aimed to allegedly shed light on the health-care industry’s flaws.

Among the scores of followers who have been tracking Mangione religiously are some who claim to have been victimized by the US health-care system.

Mangione’s latest hearing comes as he tries to block the Manhattan District Attorney’s Office from showing or telling jurors about items seized during his Dec. 4, 2024 arrest in a McDonald’s in Altoona, Pa.

The items include a .9mm handgun that prosecutors say matches the one used in the killing, as well as a notebook in which Mangione allegedly described his intent to “wack” a health-insurance executive.

Mangione has pleaded not guilty to state and federal murder charges.

-Additional reporting by Alex Oliveira