The list of tunnels includes any road tunnel, railway tunnel or waterway tunnel anywhere in the world.
- Ziya Bunyadov tunnel Baku
- Darnagul tunnel Baku
- 20 January tunnel Baku
- Kalbajar Tunnel
Specifically notable tunnels in the People's Republic of China include:
- Tunel del Toyo (under construction) 9.84 km
- La Línea Tunnel 8.65 km
- Occidente Tunnel 4.6 km
- Buenavista Tunnel 4.6 km
- Sumapaz Tunnel 4.1 km
- Daza Tunnel 1.7 km
- Túnel Polvorín 1.6 km
- Girardota Tunnel 850 m
- La Llorona Tunnel 470 m
- Bijagual Tunnel 185 m
- Boquerón Tunnel 2.4 km
- Santa Rosa Tunnel 1.5 km
- Tunnel 5 1.6 km
- Tunnel 3 1.4 km
- Túnel Guacapate 1.2 km
- Great Belt Fixed Link, railway, 8.0 km
- Copenhagen Metro, metro rail, M2 line, 7,4 km (Fasanvej–Lergravsparken)
- Øresund Connection, road and rail, 4.05 km
- Boulevard Line, Copenhagen, railway, 1.8 km
- Limfjordstunnelen
- Channel Tunnel to the United Kingdom (railway through the English Channel), at 50.5 km (31.4 mi)
- International Tunnel de Bielsa-Aragnouet France – Spain: total length 3.07 km, diameter 7.5 m, 100 m minimum distance between one after another vehicles, asphalt lane 6 m wide, for vehicles high max 4.3 m, max speed 60 km/h (37 mi/h)
- Fréjus Rail Tunnel
- Fréjus Road Tunnel
- Mont Blanc Tunnel
- Pont de l'Alma Tunnel (built under the River Sena – along its length, perpendicular to the length of the bridge, with reinforced concrete columns between the two traffic lanes, road: forbidden for pedestrians)
- Rove Tunnel, southern section of the Marseilles–Rhône Canal, 7.2 km (4.5 mi) long and 22 m (72 ft) wide, Bouches-du-Rhône dept., SE France; opened 1927. Starting near the village of Le Rove, it cuts through the Chaîne de l'Estaque at sea level. It is considered one of the greatest pieces of engineering since the Panama Canal. Longest canal tunnel in the world.
- Col de Tende Road Tunnel
- Col de Tende Rail Tunnel [fr]
Road tunnel in operation:
- Aktio–Preveza Undersea Tunnel (road), Connects Aktio and Preveza, under Aktion Channel, 1.20 km
- Artemisio Tunnel (road), double tunnel, under Mount Artemision, 1.40 km
- 76 tunnels of the A2 motorway (Egnatia Odos), most notably in parts of Epirus and Western Macedonia, combined length of 99 km, the longest of which are Driskos Tunnel 4.6 km, Metsovo Tunnel 3.5 km, Dodoni Tunnel 3.6 km, Kastania Tunnel 2.2 km, Anilio Tunnel 2.1 km
- Road Tunnels of E94 part Athens–Corinth, point Kakia Skala, combined length of 6 km
Road tunnel under construction:
- Tempe Tunnel
- Platamonas Tunnel
Railway tunnel in operation:
- Tempe Tunnel 5.5 km
- Platamonas Tunnel 4.3 km
- Perama Tunnel 3.5 km
- Kakia Skala Tunnel 2.4 km
Railway tunnel under construction:
- Kalidromos Tunnel
- Othrios Tunnel
- Domokos Tunnel
- Panagiopoulos Tunnel
- Aegio Tunnel
No metro, but some long road tunnels, including Hvalfjörður Tunnel at 5.8 km (3.6 mi) and some longer, and the longest (non-road) hydroelectric tunnel in Europe, one of the longest tunnels of any kind in the world, at Kárahnjúkar Hydropower Plant at 39.7 km (24.7 mi)
- Bukovik Tunnel, railway, 7.05 km
- veles tunnel 500 m
- veles tunnel 300 m
- demir kapija tunnel 800 m
Road tunnels in operation
- Sozina Tunnel 4.19 km
- Ivica Tunnel 2.21 km
- Sutorman Tunnel 1.97 km (used as railway tunnel from 1908 to 1959, very narrow, only one car, rarely used)
- Vrmac Tunnel 1.64 km
- Lokve Tunnel 1.12 km
- Budoš Tunnel
Road tunnels under construction
- Vjeternik Tunnel 3.0/2.86 km (two tubes)
- Klisura Tunnel 2.81 km
- Kosman Tunnel 2.67/2.55 km (two tubes)
- Vežešnik Tunnel 2.47/2.41 km (two tubes)
- Mala Trava Tunnel 1.90/1.88 km (two tubes)
- Jabučki Krš Tunnel 1.46/1.36 km (two tubes)
- Ibarac Tunnel 1.19 km
Railway tunnels in operation
- Sozina Tunnel 6.17 km
- Trebješica Tunnel 5.17 km
- Mojkovac Tunnel 3.24 km
- Ostravica Tunnel 3.13 km
- Šljivovica Tunnel 2.20 km
Road tunnels in operation
Railway tunnels in operation
- Subic Tunnel (road)
- Marcos Highway Tunnel (road)
- Antipolo Tunnel (road)
- Cebu tunnel (road)
- Purle line tunnel (rail)
- "Tunel" ("the Tunnel"), 813 m, on the Warsaw–Kielce–Kraków line, between Sędziszów and Słomniki
- Wałbrzych–Jedlina, 1.60 km, rail
- Warsaw Metro rail
- Warsaw Cross-City Line, 2.31 km, rail
- Warsaw, road city tunnel (Wisłostrada), 930 m southbound, 889 m northbound
- Gdańsk, road under water tunnel, 1.38 km, Tunel_pod_Martwą_Wisłą [pl]
- Laliki, road mountain tunnel, 678 m, Tunel_Emilia [pl]
- Kraków, road city tunnel, 230 m, Tunel_Rafała_Kalinowskiego_w_Krakowie [pl]
- Kraków, tram city tunnel, 1.42 km, Tunel_Krakowskiego_Szybkiego_Tramwaju [pl]
- Teliu Rail Tunnel 4.37 km
- Talasmani Rail Tunnel 3.33 km
- Pasul Şetref Rail Tunnel 2.39 km
- Danes Rail Tunnel 969 m
- Capra-Bâlea Road Tunnel, 884 m (connects the historic regions of Transylvania and Wallachia), Transfăgărășan
- Sighisoara Rail Tunnel 401 m
- Sacel Highway Tunnel, 340 m, A1 motorway (Romania)
- Transfagarasan KM 60 Tunnel, 172 m, Transfăgărășan
- Dekani Tunnel – 2.18/2.19 km, A1 road
- Golovec Tunnel – 530/595 m, A1 road/E57 road
- Kastelec Tunnel – 2.29/2.24 km, A1 road
- Karavanke Tunnel (Karawanken Tunnel) – 7.86 km, A2 road/E61 road
- Trojane Tunnel – 2.84/2.93 m, A1/E57 road
- Šentvid Tunnel – 1.07/1.05 m, A2/E61 road
- Bohinj Tunnel – 6.33 km, rail tunnel on the way Jesenice – Nova Gorica
- Tunnels on the Slovenian motorways
- Chong Khao Tunnel (235.90 m rail tunnel on Southern line in Nakhon Si Thammarat province)
- Huai Mae Lan Tunnel (130.20 m rail tunnel on Northern line in Phrae province)
- Khao Phang Hoei Tunnel (230.60 m rail tunnel on Northeastern line in Lopburi and Chaiyaphum provinces)
- Khao Phlueng Tunnel (362.44 m rail tunnel on Northern line in Uttaradit and Phrae provinces)
- Khun Tan Tunnel (1362.10 m rail tunnel on Northern line in Lampang and Lamphun provinces)
- Mongkolrit Tunnel (268 m road tunnel in Betong, Yala province)
- Pang Tup Khop Tunnel (120.09 m rail tunnel on Northern line in Uttaradit province)
- Phra Phutthachai Tunnel (1.20 km rail tunnel on freight-only Eastern line in Saraburi province)
- Mae Taeng–Mae Ngat–Mae Kuang Diversion Tunnel 23 km (waterway) underconstruction
- MRT Blue Line 25.8 km (underground rail section)
- MRT Orange Line 13.8 km (underground rail section) – underconstruction
- Khao Yai – Thap Lan Tunnel (250 m and 180 m road tunnel, total of 430 m in Prachinburi Province, for wildlife overpass)
- Airport Tunnel, Dubai (road)
- Al Shindagha Tunnel, Dubai (road)
- Wadi Al Helo Tunnel (between Sharjah – Kalba approximately 1.6 km)