Taiji Cave
China
5400 m long
Notts Pot
United Kingdom
5200 m long · 157 m deep
Al Hoota Cave
Oman
5000 m long
Grotte di Castelcivita (Castelcivita Caves)
Italy
5000 m long
Laurel Caverns
United States
4972 m long
Lost Johns' Cave
United Kingdom
4800 m long · 211 m deep
Siju Cave (Siju Dobakkol)
India
4772 m long
Short Drop Cave–Gavel Pot system
United Kingdom
4680 m long · 212 m deep
Cueva de los Tayos
4600 m long
Ireby Fell Cavern
United Kingdom
4600 m long · 128 m deep
Lummelunda Cave
Sweden
4500 m long
Resava Cave
Serbia
4500 m long · 80 m deep
Wookey Hole Caves
United Kingdom
4380 m long · 90 m deep
Ingleborough Cave
United Kingdom
4200 m long
Upper Flood Swallet
United Kingdom
4100 m long · 110 m deep
Grotta di Nereo Nereo Cave
Italy
4000 m long · 33 m deep
Grotta di Nettuno Neptune's Grotto
Italy
4000 m long
Ogof Llyn Parc
United Kingdom
4000 m long · 430 m deep
Crystal Cave
United States
3894.6 m long
Crag Cave
Ireland
3800 m long
Noon's Hole (Sumera) – Arch Cave
United Kingdom
3700 m long · 108 m deep
Belianska Cave
Slovakia
3641 m long
Bakers Pit
United Kingdom
3631 m long
Grotte aux Fées
3630 m long
Grotte aux Fées (Switzerland)
3630 m long
Eastwater Cavern
United Kingdom
3510 m long
Grutas de García
Mexico
3500 m long · 105 m deep
Airman's Cave
United States
3444 m long · 9 m deep
Gough's cave
United Kingdom
3405 m long · 115 m deep
Otter Hole
United Kingdom
3352 m long · 60 m deep
Gökgöl Cave
Turkey
3350 m long
Dupnisa Cave
Turkey
3200 m long
Tears of the Turtle
3025.6 m long · 755 m deep
Devil's Cave
Switzerland
3000 m long
Giant's Hole
United Kingdom
3000 m long · 120 m deep
Grotte di Castellana (Castellana Caves)
Italy
3000 m long