The FBI has for the first time identified “conspiracy theory-driven domestic extremists” as a terror threat — including the believers in the shadowy QAnon network, according to a report.

An FBI bulletin dated May 30, 2019, from the bureau’s Phoenix field office and obtained by Yahoo News describes the growing threat and lists multiple arrests tied to violent incidents sparked by fringe beliefs.

“The FBI assesses these conspiracy theories very likely will emerge, spread, and evolve in the modern information marketplace, occasionally driving both groups and individual extremists to carry out criminal or violent acts,” the document states.

The feds believe the conspiracy theory extremists will likely increase their activities during the 2020 presidential election cycle, according to the document cited by Yahoo.

The bureau said another factor driving the mounting threat is “the uncovering of real conspiracies or cover-ups involving illegal, harmful, or unconstitutional activities by government officials or leading political figures.”

The FBI does not specify which people or cover-ups it was referring to.

The document specifically mentions the infamous QAnon conspiracy, whose believers say a deep state of Hollywood celebs and Democrats is working to undermine President Trump and is running an international pedophile ring including Clinton associates from a DC pizzeria.

News about the intelligence bulletin comes as the FBI faces pressure to explain whom it deems to be an extremist — and how the government prosecutes domestic terrorists.

During a hearing before the Senate Judiciary Committee last week, FBI Director Christopher Wray faced criticism from Democrats who said the bureau was not focusing enough on violence by white supremacists.

“The term ‘white supremacist,’ ‘white nationalist’ is not included in your statement to the committee when you talk about threats to America,” said Sen. Richard Durbin (D-Ill.).

“There is a reference to racism, which I think probably was meant to include that, but nothing more specific.”

Wray told the lawmakers the FBI had dispensed with separate categories for black identity extremists and white supremacists, saying the bureau was focusing on “racially motivated” violence.

“I will say that a majority of the domestic terrorism cases that we’ve investigated are motivated by some version of what you might call white supremacist violence,” he added.

In May, Michael McGarrity, the FBI’s assistant director of the counterterrorism division, told Congress the bureau “classifies domestic terrorism threats into four main categories: racially motivated violent extremism, anti-government/anti-authority extremism, animal rights/environmental extremism, and abortion extremism.”

The new category focuses on violence based specifically on beliefs that “attempt to explain events or circumstances as the result of a group of actors working in secret to benefit themselves at the expense of others” and are “usually at odds with official or prevailing explanations of events,” according to the document.

“The advent of the Internet and social media has enabled promoters of conspiracy theories to produce and share greater volumes of material via online platforms that larger audiences of consumers can quickly and easily access,” the document says.

The FBI’s national press office provided a written statement to Yahoo News.

“While our standard practice is to not comment on specific intelligence products, the FBI routinely shares information with our law enforcement partners in order to assist in protecting the communities they serve,” the bureau said.

The FBI added that it can “never initiate an investigation based solely on First Amendment-protected activity. As with all of our investigations, the FBI can never monitor a website or a social media platform without probable cause.”

The 15-page report cited several incidents, including the Pizzagate conspiracy, which led a 28-year-old man to invade the DC eatery to rescue the children he believed were being kept there, and fire an assault-style weapon inside.

The document also cites a California man who was arrested on Dec. 19, 2018, after being found with what appeared to be bomb-making materials in his vehicle.

The unnamed man was planning “blow up a satanic temple monument” in the Capitol rotunda in Springfield, Ill., to “make Americans aware of Pizzagate and the New World Order, who were dismantling society,” according to the document.

In May, Facebook designated several extremist figures as “dangerous” — including Nation of Islam leader Louis Farrakhan, Infowars host Alex Jones, political commentator Milo Yiannopoulos and conspiracy theorist Laura Loomer — and permanently banned them.

While the FBI document does not mention Jones or InfoWars by name, it does cite some of the conspiracy theories frequently associated with the far-right radio host, including the concept of the New World Order.

Joe Uscinski, an associate professor of political science at the University of Miami, whose work on conspiracy theories is mentioned in the FBI document, said there’s no data suggesting conspiracy theories are becoming more widespread.

“There is absolutely no evidence that people are more conspiratorial now. They may be, but there is not strong evidence showing this,” Uscinski told Yahoo News, adding that it’s not that people are becoming more conspiratorial, but that conspiracies are simply getting more media attention.