Gov. Andrew Cuomo fired off a letter to MTA execs Friday demanding they address the homeless crisis in the city’s subways — saying he’s “never seen it this bad.”

“I’ve never seen it this egregious, either on the numbers and on the statistics, or as a matter of visibility,” Cuomo told reporters in a conference call, describing the overwhelming number of vagabonds sleeping in stations and on subway cars.

“We had homeless people who would go into subways and terminals in the winter, I’ve never seen it as a year-round phenomena. I’ve never seen it in the summer,” he said.

More than 1,770 homeless people were found living in the subway in 2018, according to the governor’s letter, which was sent to the Metropolitan Transportation Authority’s board of directors.

In 2019, the number rose to 2,713.

There were 659 vagrant-caused train delays in 2018, according to the MTA, up from 428 such delays in 2014 — an increase of nearly 54 percent.

“I never met a homeless person who says, ‘I love sleeping in the terminal, I love sleeping on the trains.’ Constant noise, subject to harassment, etc. It is shelter of last resort is what it is, and we can be better than that, we must be better than that,” the governor said.

Cuomo also called on the authority to beef up law enforcement presence on trains and buses, crack down on fare evasion and boost train speeds.

The MTA is set to come up with a reorganization plan at the end of the month.