| Surname | Named after | location | Mean diameter (km) |
Name valid since |
|---|---|---|---|---|
| Jal | Jal , location in New Mexico , USA | 26.25 ° S , 28.76 ° WMars -26.25 -28.76 | 4.81 | 1976 |
| Jama | Jama , place in Tunisia | 21.39 ° N , 53.18 ° WMars 21.39 -53.18 | 2.9 | 1988 |
| Jampur | Jampur , place in Pakistan | 38.71 ° N , 81.55 ° WMars 38.71 -81.55 | 27.9 | 1991 |
| Janssen | Jules Janssen (1824–1907), French. astronomer | 2.69 ° N , 37.61 ° OMars 2.69 37.61 | 153.63 | 1973 |
| Jarry Desloges | René Jarry-Desloges (1868–1951), French. astronomer | 9.37 ° S , 83.85 ° OMars -9.37 83.85 | 93.36 | 1973 |
| Jeans | James Jeans (1877–1946), British physicist and astronomer | 69.64 ° S , 154.18 ° OMars -69.64 154.18 | 73.6 | 1973 |
| Jen | Jen (Nigeria) | 39.88 ° N , 10.57 ° WMars 39.88 -10.57 | 8.88 | 1976 |
| Jezero | Jezero (Bosnia and Herzegovina) | 18.41 ° N , 77.69 ° OMars 18.41 77.69 | 47.52 | July 25, 2007 |
| Jezža | Jesscha , place in Russia | 48.42 ° S , 37.92 ° WMars -48.42 -37.92 | 9.22 | 1976 |
| Jijiga | Jijiga , city in Ethiopia | 25.11 ° N , 53.95 ° WMars 25.11 -53.95 | 16.16 | 1976 |
| Jodrell | Jodrell Bank Radio Observatory in England | 47.47 ° N , 132.3 ° EMars 47.47 132.3 | 3.02 | 1979 |
| Johannesburg | Johannesburg , city in South Africa | 47.92 ° N , 133.19 ° OMars 47.92 133.19 | 1.22 | 1979 |
| Johnstown | Johnstown, Pennsylvania , USA | 9.8 ° S , 51.07 ° WMars -9.8 -51.07 | 3.36 | 2006 |
| Jojutla | Jojutla , place in Mexico | 81.59 ° N , 169.8 ° WMars 81.59 -169.8 | 19.32 | 2006 |
| Joly | John Joly (1857-1933) Irish geologist | 74.5 ° S , 42.69 ° WMars -74.5 -42.69 | 76.99 | 1973 |
| Jones | Harold Spencer Jones (1890–1960), British astronomer | 18.88 ° S , 19.83 ° WMars -18.88 -19.83 | 90.11 | 1973 |
| Jörn | Jörn (Sweden) | 27.19 ° S , 76.43 ° OMars -27.19 76.43 | 20.47 | Sep 14 2006 |
| Jumla | Jumla , place in Nepal | 21.29 ° S , 86.44 ° OMars -21.29 86.44 | 49.23 | 2006 |
