List of craters on Mars: O–Z

This is a list of craters on Mars. There are hundreds of thousands of impact craters on Mars, but only some of them have names. This list here contains only named Martian craters starting with the letter O – Z (see also lists for A – G and H – N).

Large Martian craters (greater than 60 kilometers in diameter) are named after famous scientists and science fiction authors; smaller ones (less than 60 km in diameter) get their names from towns on Earth. Craters cannot be named for living people, and small crater names are not intended to be commemorative – that is, a small crater isn't actually named after a specific town on Earth, but rather its name comes at random from a pool of terrestrial place names, with some exceptions made for craters near landing sites. Latitude and longitude are given as planetographic coordinates with west longitude.

O Crater Coordinates Diameter (km) Approval date Named after Refs Obock 14.5 2013 Djibouti place name Ocampo 7.1 1991 Mexico place name Ochakov 33.3 1976 Ukraine place name Oglala 18.2 1976 USA (South Dakota) place name Ohara 10.8 2006 Japan place name Oituz 15.3 2018 Oituz, Romania Okhotsk 1.2 1979 Okhotsk, Russia Okotoks 22.6 2006 Canada (Alberta) place name Olenek 3.0 1988 Russia place name Olom 6.0 1988 Russia place name Ome 2.9 1988 Japan place name Ōmura 8.4 1976 Japan place name Onon 3.5 1988 Onon, Mongolia Oodnadatta 27.0 1991 South Australia place name Oraibi 33.0 1976 USA (Arizona) place name Ore 7.0 1976 Nigeria place name Orinda 9.8 1979 USA (California) place name Orson Welles 124.5 2003 Orson Welles Ostrov 73.0 1976 Russia place name Ottumwa 53.2 1976 USA (Iowa) place name Oudemans 124.0 1973 Jean Abraham Chrétien Oudemans Ouarzazate 22.0 2026 Town in Morocco Oyama 106.8 2010 Vance Oyama

P Crater Coordinates Diameter (km) Approval date Named after Refs Pabo 8.9 1976 Uganda place name Pai 42 2017 Pai, Thailand Paks 6.8 1976 Hungary place name Pal 79.0 2010 George Pal Palana 5.1 1988 Settlement of Palana in Kamchatka Krai, Russia. Palos 55.1 2000 Spain place name Pangboche 10.4 2006 Pangboche, Nepal Papike 67.0 2025 James J. Papike Paros 34.1 1988 Paros, Greece Pasteur 113.0 1973 Louis Pasteur Pau 44.8 2006 France place name Pebas 5.2 2006 Peru place name Peixe 10.3 1976 Brazil place name Penticton 8.0 2008 Penticton, Canada Perepelkin 112.0 1973 Yevgeny Perepyolkin Peridier 100.0 1973 Julien Peridier Perrotin 84.0 1988 Henri Perrotin Persbo 19.5 2006 Persbo, Sweden Peta 80.5 1997 Greece place name Pettit 98.1 1973 Edison Pettit Phedra 21.3 2008 Suriname place name Philadelphia 1.6 1979 Philadelphia, Pennsylvania, USA Phillips 190.2 1973 John Phillips (geologist) and Theodore E. Phillips Phon 9.7 1976 Phon District, Khon Kaen, Thailand Pica 2.2 1988 Chile place name Pickering 115.0 1973 Edward Charles Pickering and William Henry Pickering Piña 5.1 1988 Panama place name Pinglo 17.4 1976 China place name Pital 41.7 2014 Costa Rica place name Piyi 11.4 1991 Cyprus place name Pizzarello 97.0 2025 Sandra Pizzarello Platte 3.3 1988 USA (South Dakota) place name Playfair 64.2 1973 John Playfair Plum 2.5 1976 USA (Wisconsin) place name Podor 24.0 1976 Podor, Senegal Pohl 111.0 2022 Frederik Pohl Pollack 96.0 1997 James B. Pollack Polotsk 31.5 1976 City Polotsk in Vitebsk Region of Belarus Pompeii 32.4 1988 Pompeii, Italy Poona 20.0 1986 Pune, India Port-au-Prince 0.5 1979 Port-au-Prince, Haiti Porter 105.0 1973 Russell W. Porter Porth 9.3 1976 Porth, Wales Portsmouth 0.9 1979 Portsmouth, New Hampshire, USA Porvoo 9.8 1976 Porvoo, Finland Poti 31.0 1991 Georgia place name Poynting 74.0 1988 John Henry Poynting Prao 20.0 2016 Vietnam place name Priestley 41.9 1973 Joseph Priestley Princeton 1.8 1979 Princeton, New Jersey, USA Proctor 168.2 1973 Richard A. Proctor Ptolemaeus 185.0 1973 Ptolemy Puławy 51.5 1979 Poland place name Puńsk 11.6 1976 Puńsk, Poland Pursat 18.3 2009 Cambodia place name Puyo 10.4 2006 Ecuador place name Pylos 19.1 1976 Greece place name

Q Crater Coordinates Diameter (km) Approval date Named after Refs Qara 2.5 2018 Qara Oasis, Egypt Qibā 3.9 1988 Saudi Arabia place name Quenisset 138.0 1973 Ferdinand Quénisset Quick 13.4 1976 Canada (British Columbia) place name Quines 10.9 1991 Argentina place name Quorn 5.9 1976 South Australia place name Quthing 15.6 2013 Lesotho place name

R Crater Coordinates Diameter (km) Approval date Named after Refs Rabe 108.0 1973 Wilhelm F. Rabe Radau 114.5 1973 Rodolphe Radau Raga 3.4 2011 South Sudan place name Rahe 34.1 2000 Jürgen Rahe () Rakke 19.2 1976 Estonia place name Rana 12.2 1976 Norway place name Raub 7.1 1979 Malaysia place name Rauch 34.1 1976 Argentina place name Rauna 2.5 2015 Latvia place name Rayadurg 21.8 1991 India place name Rayleigh 148.7 1973 Lord Rayleigh Redi 62.0 1973 Francesco Redi Renaudot 64.0 1973 Gabrielle Renaudot Flammarion Rengo 13.0 1976 Chile place name Resen 7.4 2011 Resen, North Macedonia Reutov 18.0 2013 Russia place name Reuyl 85.9 1973 Dirk Reuyl Revda 27.0 1976 Russia place name Reykholt 53.2 1991 Iceland place name Reynolds 97.5 1973 Osborne Reynolds Ribe 11.0 1976 Denmark place name Richardson 95.9 1973 Lewis Fry Richardson Rimac 7.6 1979 Peru place name Rincon 13.6 1976 Netherlands Antilles place name Ritchey 79.0 1973 George Willis Ritchey Robert Sharp 152.08 2012 Robert P. Sharp Roddenberry 141.0 1994 Gene Roddenberry Roddy 85.8 2013 David Roddy Romny 5.3 1976 Ukraine place name Rong 8.8 1988 Tibet place name Rongxar 22.0 1987 Rongxar, Tibet Roseau 6.3 2009 Dominica place name Ross 85.0 1973 Frank Elmore Ross Rossby 82.5 1973 Carl-Gustaf Rossby Ruby 27.3 1976 USA (South Carolina) place name Rudaux 107.0 1973 Lucien Rudaux Ruhea 9.5 2016 Town in Bangladesh Runanga 40.4 2006 New Zealand place name Russell 139.7 1973 Henry Norris Russell Rutherford 110.5 1973 Ernest Rutherford Ruza 22.0 1979 Russia place name Rynok 9.0 1979 Russia place name Rypin 18.4 1976 Poland place name

S Crater Coordinates Diameter (km) Approval date Named after Refs Sabo 4.2 1988 Russia place name Sagan 98.1 2000 Carl Sagan Saheki 85.0 2006 Tsuneo Saheki Salaga 27.1 1976 Salaga, Ghana Salkhad 42 2018 Salkhad, Syria San Juan 0.3 1979 San Juan, Puerto Rico Sandila 13.9 1976 India place name Sangar 30.9 1976 Russia place name Santa Cruz 0.9 1979 Santa Cruz de Tenerife, Canary Islands Santa Fe 20.5 1976 Santa Fe, New Mexico, USA Santaca 16.0 1991 Mozambique place name Santa Maria 16.0 (informal) Santa Maria, ship used by Columbus to cross the Atlantic in 1492. — Saravan 47.8 2009 Laos place name Sarh 54.0 2009 Chad place name Sarn 11.9 1991 Wales place name Sarno 23.2 1976 Italy place name Satka 18.7 1976 Russia place name Sauk 3.1 1976 USA (Wisconsin) place name Savannah 0.7 1979 Savannah, Georgia, USA Savich 188.3 1991 A. M. Savich Say 13.3 1976 Niger place name Schaeberle 160.0 1973 John Martin Schaeberle Schiaparelli 471.0 1973 Giovanni Schiaparelli Schmidt 212.5 1973 J. F. Julius Schmidt and Otto Schmidt Schöner 195.0 1976 Johannes Schöner Schroeter 292.0 1973 Johann Hieronymus Schröter Sebec 64.0 1991 USA (Maine) place name Secchi 234.0 1973 Angelo Secchi Secunda 11.0 2026 Town in South Africa Sedona 7.4 2020 Sedona, Arizona Sefadu 10.8 2006 Sierra Leone place name Selevac 7.3 2016 Serbia place name Semeykin 76.0 1982 Seminole 20.6 1976 USA (Florida) place name Sera 28 2018 Sera, Hiroshima, Japan Sevel 2.0 1988 Denmark place name Sevi 3.2 1988 Russia place name Sfax 7.0 1976 Tunisia place name Shambe 34.2 1976 Sudan place name Shardi 18.0 2006 Pakistan place name Sharonov 102.0 1973 Vsevolod Sharonov Shatskiy 72.5 1979 Nikolay Shatsky Shawnee 17.0 1976 USA (Ohio) place name Sian 3.8 1988 Russia place name Sibiti 33 2017 Town in the Republic of Congo (Congo-Brazzaville) Sibu 18.2 1976 Sibu, Malaysia Sidhi 48.0 2025 Sidhi, Madhya Pradesh, India Sigli 31.4 1976 Indonesia place name Sinda 6.6 1988 Russia place name Singa 12.8 1976 Sudan place name Sinop 15.4 1991 Sinop, Turkey Sinton 65.25 2007 William M. Sinton Sitka 17.5 1976 Sitka, Alaska, USA Sklodowska 124.0 1973 Maria Sklodowska-Curie Slipher 127.0 1973 Vesto Slipher Smith 75.5 1973 William Smith Soffen 30.0 1976 Gerald Soffen Sögel 60.1 2006 Germany place name Sokol 22.4 1976 Russia place name Solano 8.7 1991 Philippines place name Somerset 3.3 2006 USA (Pennsylvania) place name Soochow 31.8 1976 China place name Souris 2.8 1988 Canada (Manitoba) place name South 107.1 1973 Sir James South Spallanzani 72.5 1973 Lazzaro Spallanzani Spry 7.8 1976 USA (Utah) place name Spur 8.4 1976 USA (Texas) place name Srīpur 23.4 1991 Bangladesh place name Stege 77.5 1985 Denmark place name Steinheim 11.6 2007 Steinheim am Albuch, Germany Steno 106.9 1973 Nicolas Steno Stobs 12.5 1976 Scotland place name Stokes 66.0 1973 George Stokes Ston 6.9 1979 Croatia place name Stoney 171.0 1973 George Johnstone Stoney Suata 24.3 1991 Venezuela place name Sucre 13.4 1976 Colombia place name Suess 79.2 1973 Eduard Suess Sūf 9.9 1976 Jordan place name Sulak 25.7 1985 Russia place name Sumgin 85.0 1979 Surt 9.9 1976 Libya place name Suzhi 25.0 1991 China place name Swanage 18.7 1997 Swanage, England Sytinskaya 93.2 1982 Nadezhda Nikolaevna Sytinskaya

T