Coordinates: 39°52′53″N 75°17′18″W / 39.88139°N 75.28833°W
Muckinipattis Creek or Muckinipates Creek is a 5.4-mile-long (8.7 km) creek which runs through Delaware County, Pennsylvania and enters Darby Creek just prior to the Delaware River.
The creek is believed to begin with two branches, one in Springfield Township and the other on the southwest corner of Springfield Road and Bishop Avenue. The Muckinipattis then proceeds past the Primos-Secane swim club in Upper Darby Township. Further downstream it flows under the former A&P parking lot in Secane before forming the border of Darby and Ridley townships. It empties into Darby Creek between the shores of Montgomery Park in the borough of Folcroft and the historic Morton House in Norwood.
The name Muckinipates derives from a Lenape word meaning 'deep running water'. The Otter and Turtle tribes within the Lenni Lenape nation hunted, lived along the creek, and had a small village on what today is Montgomery Park in Folcroft.