A homeless teenager was arrested Saturday and charged with stabbing two men, one fatally, in a Big Apple park, police said.

The teen, who wasn’t identified because of his age, allegedly stabbed the 24-year-old and 25-year-old victims during a dispute inside Sara D. Roosevelt Park on the Lower East Side around 8:30 p.m. Thursday, cops said.

Pasquale Alonso, 25, was stabbed in the chest and died in the park near Delancey and Broome streets, cops said. He was also homeless.

The younger victim, who wasn’t identified, was rushed to Bellevue Hospital in stable condition with a stab wound to his torso, cops said.

The teen was charged with murder, attempted murder, attempted assault and assault, cops said. He was arrested at the NYPD’s 5th Precinct, cops said.

It wasn’t clear what the dispute was about, police said.