| Curls Run | |
| Name Other: | Kirl, Kyrl, Carl, Curl, Curtis Run |
| Pushpin Map: | USA Pennsylvania |
| Pushpin Map Size: | 250 |
| Pushpin Map Alt: | pushpin map showing location of |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Pennsylvania |
| Subdivision Type3: | County |
| Subdivision Name3: | Bucks |
| Subdivision Type4: | Township |
| Subdivision Name4: | Wrightstown, Upper Makefield, Solebury |
| Length: | 2.47miles |
| Source1 Elevation: | 210feet |
| Mouth Elevation: | 102feet |
| Progression: | Curls Run → Pidcock Creek → Delaware River → Delaware Bay |
| River System: | Delaware River |
| Bridges: | Township Line Road Street Road |
| Custom Label: | Slope |
| Custom Data: | 43.72ft/mi |
Curls Run (Kirl, Kyrl, Carl, Curl) is a tributary of Pidcock Creek in Bucks County, Pennsylvania, part of the Delaware River drainage basin.
Curls Run was named for Thomas Kirl, an early landowner in Buckingham Township, Bucks County, Pennsylvania, in the United States, whose land was later purchased by Robert Smith in 1723. Other landowners along the creek were Harry Trego, Earl Daniels, John Hogan, Harvey R. Smith, William E. Smith, Charles R. Wentz, Charles W. Livezey, and Lettie A. Betts. It was first mentioned in 1789 in an agreement to set off land for a schoolhouse referred to as the 'Red Schoolhouse'. In the Atlas of Bucks County by E. P. Noll & Co. in 1891, it was referred to erroneously as 'Curtis Run'.[1]
Curls Run was entered into the Geographic Names Information System of the U.S. Geological Survey on 1 April 1990 as identification number 1202642.[2]
Curls Run rises in Upper Makefield Township, just east of Pineville, starting out northeast, then turns to the north flowing through an unnamed pond, passing into Buckingham Township, then flowing to the northeast until it meets its confluence at Pidcock Creek's 3.21 river mile in Solebury Township.