| Muddy Creek | |
| Map Size: | 300 |
| Pushpin Map: | USA Oregon |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of the mouth of Muddy Creek in Oregon |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Oregon |
| Subdivision Type4: | County |
| Subdivision Name4: | Linn and Lane |
| Source1: | Coburg Ridge |
| Source1 Location: | near Coburg, Lane County |
| Source1 Coordinates: | 44.1219°N -123.0011°W[1] |
| Source1 Elevation: | 1611feet[2] |
| Mouth: | Willamette River |
| Mouth Location: | East Channel, Linn County |
| Mouth Coordinates: | 44.5372°N -123.2219°W |
| Mouth Elevation: | 210feet |
Muddy Creek is a tributary of the Willamette River that flows through parts of Lane and Linn counties in the U.S. state of Oregon. It begins near Coburg Ridge, northeast of Eugene, and meanders north across the floor of the Willamette Valley roughly parallel to the river. It joins the East Channel of the Willamette upstream of Corvallis.[3]
Muddy Creek was so named by pioneer settlers on account of its muddy waters.[4] Its entry in Oregon Geographic Names says, "It is a sluggish stream, and it is no surprise that the pioneers named it as they did."[5] The name appeared in print as early as 1857.[5]
The creek's main tributaries are Dry Muddy Creek and Little Muddy Creek.[5] A different Muddy Creek with the same characteristics but on the other (western) side of the Willamette flows into Marys River, which enters the Willamette at Corvallis.[5]