| Ritchey Knob | |
| Elevation Ft: | 2865 |
| Location: | Blair County, Pennsylvania, U.S. |
| Range: | Allegheny Mountains |
| Coordinates: | 40.3446°N -78.5192°W |
| Topo: | USGS Blue Knob (PA) Quadrangle |
| First Ascent: | unknown |
Ritchey Knob is a summit located on the Blue Knob massif. This mountain is connected to Pine Knob and forms the northernmost summits of the massif.
Ritchey Knob is the fourth highest of this grouping behind Blue Knob 3136feet, Herman Point 3034feet and Schaefer Head 2950feet.
Based on data, it ranks as the 15th highest mountain in Pennsylvania and the 37188th highest mountain in the United States.