Jericho Creek (Towssisink, Bakers Creek, Knowles Creek) is a tributary of the Delaware River, rising in Wrightstown Township, Bucks County, Pennsylvania, and passing into Upper Makefield Township where it meets its confluence with the Delaware.

Named for the nearby mountain of the same name, Jericho Creek formed part of the boundary of William Penn's original purchase of land on 15 July 1682 with the Lenape.

The Indian Purchase of 1682 was limited to extend up the Delaware River from the mouth of the Neshaminy Creek "as far as a man can walk in a day and a half".

[1] Jericho Creek was entered into the Geographic Names Information System database of the U.S. Geological Survey as identification number 1178049 on 2 August 1979,[2] and is listed in the Pennsylvania Gazatteer of Streams as identification number 02975.

[3] Jericho creek rises in Wrightstown Township, Pennsylvania and flows generally easterly to its confluence at the Delaware River's 144.20 river mile and its watershed is 9.63 square miles (24.9 km2).