Mac, a black Havanese who went missing Friday night on Kinn Street in Blue Point was found Sunday evening.
Mac is a small black Havanese with white fur on her chest.
The McDonald family hopes a local resident may be able to help them find their beloved and very friendly nine-year-old dog, said mom Kerri McDonald.
The family has been out since Saturday night putting flyers up all around Blue Point and Bayport and has called the town shelters.
"We've distributed about 600 flyers, on cars at the church to any store that will let us put one one," said McDonald.
The last sighting of Mac was Friday evening when she was seen outside the family's home.
Anyone with information is asked to call 631-379-8924.