Police Commissioner Ray Kelly last night blasted the Obama administration for recommending a monitor to oversee the NYPD’s stop-and-frisk program.

“It is disappointing, quite frankly,” Kelly said after a graduation ceremony.

Kelly said he’s known Attorney General Eric Holder for some time and was stunned by his last-minute intrusion into a controversial federal court case that could force the NYPD to make sweeping changes to stop-and-frisk.

“We were not given an opportunity to address the issues that they supposedly had seen,’’ Kelly said.

He called the “11th hour, 59th minute” court filing by the Justice Department “unfair, unnecessary.”

And Kelly noted that the city’s murder rate is at an all-time low.

It was Kelly’s first public comment since Holder put his thumb on the scale in the closely watched case.

Meanwhile, former Police Commissioner Bill Bratton has the NYPD’s back. He defended stop-and-frisk as “the most basic tool fundamental of policing” and said mayoral candidate and City Comptroller John Liu is “out of his mind” for wanting to scrap it.