| System | Length | Location | coordinates | Discovery | Associated parks, protected areas |
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1 | Mammoth Cave | 685.6abbr=onNaNabbr=on[3] [4] | near Brownsville, Kentucky, United States | | 1791 | Mammoth Cave National Park, also a World Heritage Site, International Biosphere Reserve, and International Dark Sky Park |
2 | Sistema Ox Bel Ha | 496.8abbr=onNaNabbr=on[5] [6] | near Tulum, Quintana Roo, Mexico | | 1996 | southern parts in Sian Ka'an Biosphere Reserve |
3 | Shuanghedong Cave Network | 417.6abbr=onNaNabbr=on[7] [8] | Guizhou, China | | 1988 | Suiyang Shuanghedong National Geopark |
4 | Sistema Sac Actun / Sistema Dos Ojos | 386.1abbr=onNaNabbr=on | near Tulum, Quintana Roo, Mexico | | 1987 | |
5 | Jewel Cave | 354.07abbr=onNaNabbr=on[9] [10] | near Custer, South Dakota, United States | | 1900 | Jewel Cave National Monument |
6 | Wind Cave | 266.8abbr=onNaNabbr=on[11] | near Hot Springs, South Dakota, United States | | 1881 | Wind Cave National Park |
7 | Optymistychna Cave | 264.5abbr=onNaNabbr=on[12] | near Korolivka, Ukraine | | 1966 | Dnistrovskyy Canion |
8 | Clearwater Cave System | 257.8abbr=onNaNabbr=on[13] [14] | near Miri, Sarawak, Malaysia | | 1978 | Gunung Mulu National Park, also a World Heritage Site |
9 | Lechuguilla Cave | 244.7abbr=onNaNabbr=on[15] [16] | near Carlsbad, New Mexico, United States | | 1900 | Carlsbad Caverns National Park |
10 | Fisher Ridge Cave System | 212.1abbr=onNaNabbr=on | near Brownsville, Kentucky, United States | | 1981 | partly within Mammoth Cave National Park |
11 | Hölloch | 211.2abbr=onNaNabbr=on[17] [18] | Muotathal, Switzerland | | 1875 | |
12 | Sistema del Alto Tejuelo | 208.9abbr=onNaNabbr=on[19] | Cantabria, Spain | | 1965 | |
13 | Siebenhengste-Hohgant-Höhle | 164.5abbr=onNaNabbr=on[20] [21] | Switzerland | | 1966 | |
14 | Schönberg Cave System | 156.9abbr=onNaNabbr=on[22] [23] [24] | Austria | | 1976 | |
15 | Mortillano system | 146.5abbr=onNaNabbr=on[25] | Cantabria, Spain | | 1960 | |
16 | Priest's Grotto | 142.1abbr=onNaNabbr=on[26] | Ukraine | | 1940 | |
17 | Steinbrücken Cave | 137.7abbr=onNaNabbr=on | Austria | | 1929 | |
18 | Marosakabe cave system | 124abbr=onNaNabbr=on[27] [28] | Madagascar | | 2006 | Tsingy de Namoroka Strict Nature Reserve |
19 | Bullita Cave | 123abbr=onNaNabbr=on[29] [30] | Australia | | 1990 | Gregory National Park |
20 | Sistema del Gandara | 119abbr=onNaNabbr=on[31] [32] | Cantabria, Spain | | 2005 | |
21 | Hirlatzhöhle | 117.8abbr=onNaNabbr=on[33] | Austria | | 1949 | |
22 | Réseau Félix Trombe | 117.2abbr=onNaNabbr=on[34] | France | | 1908 | |
23 | Toca da Boa Vista | 114abbr=onNaNabbr=on[35] | Brazil | | 1987 | |
24 | Ojo Guareña | 111abbr=onNaNabbr=on[36] [37] | Spain | | 1956 | |
25 | Sistema K'oox Baal | 103.8abbr=onNaNabbr=on[38] | near Tulum, Quintana Roo, Mexico | | 1987 | |
26 | Sistema Purificacion | 101.4abbr=onNaNabbr=on[39] [40] | Mexico | 24.0676°N -99.5653°W | 1970 | |
27 | Sistema Huautla | 100.2abbr=onNaNabbr=on[41] [42] | Mexico | 18.1212°N -96.8°W | 1965 | |
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