The fire occurred at around 6:30 a.m. at home on Pine Hill Road in Toms River.
First responders reported smoke pouring from the two-story home.
Fire crews quickly got to work and were able to knock down the flames, but not before it claimed the lives of all three occupants.
Fire crews found one adult male on the first floor and one adult female and one child, said to be a young girl, on the second floor. All three were pronounced dead on scene.
The names of the victims are being held until the next of kin are notified.
The cause of the fire remains under investigation.