Officers were called to the 1800 block of North Gratz Street at 4:37 a.m.
Investigators say the victim was a 25-year-old man.
The victim was taken to Temple University Hospital in stable condition.
There was no immediate word as to who stabbed him or why.
Earlier reports from the scene said the victim was a teen who had a finger severed. Police officials couldn't confirm that information on Saturday afternoon.