Morgan Creek is a tributary of the Tohickon Creek in Bucks County, Pennsylvania in the United States, rising in Milford Township and empties into the Tohickon in Richland Township east of Quakertown.
The stream was originally named Bog Run as it was indicated so on a draft of Elizabeth Galloway's land in 1781 and a number of other drafts by Samuel Foulke about the same time. It was named so because it ran through the wetlands today known as the Quakertown Swamp. The origin of the name Morgan Creek is unknown, but, it may have referred to General Daniel Morgan.
The Geographic Names Information System identification is 1181545. The Pennsylvania Gazetteer of Streams' identification is 03184. Morgan Creek has a watershed of . The elevation of the source is approximately and the elevation at the mouth is and it meets its confluence at the Tohickon Creek's 23.0 river mile.
Morgan Creek rises in Milford Township just south of Trumbauersville at an elevation of and flows toward the east and slowly curves to the northeast by the time it drains into the Tohickon at an elevation of . The stream has an average slope of 12.5 feet per mile (1.78 meters per kilometer).
The course of Morgan Run lies in the Brunswick Formation laid down during the Jurassic and the Triassic and consists of mudstone, siltstone, along with reddish-brown, green, and brown shale. Mineralogy includes argillite and hornfels.