| 170P/Christensen | |
| Discoverer: | Eric J. Christensen |
| Discovery Date: | June 17, 2005 |
| Designations: | P/2005 M1 |
| Epoch: | March 6, 2006 |
| Semimajor: | 4.208 AU |
| Perihelion: | 2.93 AU |
| Aphelion: | 5.487 AU |
| Eccentricity: | 0.3038 |
| Period: | 8.633 a |
| Inclination: | 10.1255° |
| Last P: | September 17, 2014 January 26, 2006 |
| Next P: | 2023-Apr-19 |
170P/Christensen is a periodic comet in the Solar System. It came to perihelion in September 2014 at about apparent magnitude 18.