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