The longest railway tunnels in the world
The top 3 according to 0 votes from people: Gotthard Base Tunnel (Switzerland) · Seikan Tunnel (Japan) · Channel Tunnel. (Updated Feb 7, 2026.)
The Gotthard Base Tunnel under the Alps, the undersea Seikan and Channel tunnels: the world's longest railway tunnels. Which ones have you travelled through?
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Top 22
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1
Gotthard Base Tunnel (Switzerland)
About 57 km. Opened in 2016, the longest railway tunnel in the world.
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2
Seikan Tunnel (Japan)
About 54 km. The undersea tunnel linking Honshu and Hokkaido, opened in 1988.
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3
Channel Tunnel
About 50 km. Linking Britain and France, opened in 1994.
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4
Yulhyeon Tunnel (South Korea)
About 50 km. The tunnel of the SRT high-speed line near Seoul.
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5
Shanghai Airport Link Tunnel (China)
About 40 km. Completed in 2024.
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6
Songshan Lake Tunnel (China)
About 39 km. On the Dongguan–Huizhou intercity railway.
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7
Shenzhen–Hong Kong Tunnel
About 36 km. The tunnel of the Guangzhou–Shenzhen–Hong Kong high-speed line.
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8
Lötschberg Base Tunnel (Switzerland)
About 35 km. Under the Bernese Alps, opened in 2007.
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9
Koralm Tunnel (Austria)
About 33 km. A new tunnel opened in 2025.
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10
New Guanjiao Tunnel (China)
About 33 km. On the Qinghai–Tibet Railway.
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11
Guadarrama Tunnel (Spain)
About 28 km. On the Madrid–Asturias high-speed line.
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12
Ping'an Tunnel (China)
About 28 km. Chengdu–Lanzhou Railway, 2023.
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13
West Qinling Tunnel (China)
About 28 km. Chongqing–Lanzhou Railway.
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14
Taihang Tunnel (China)
About 28 km. Shijiazhuang–Taiyuan high-speed railway.
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15
Hakkōda Tunnel (Japan)
About 26 km. Tōhoku Shinkansen, opened in 2010.
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16
Iwate-Ichinohe Tunnel (Japan)
About 26 km. Tōhoku Shinkansen, opened in 2002.
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17
Musil Tunnel (South Korea)
About 25 km. Jungang Line, 2021.
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18
Pajares Base Tunnel (Spain)
About 25 km. Under the Cantabrian Mountains, opened in 2023.
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19
Lainz/Wienerwald Tunnel (Austria)
About 24 km. On Vienna's Western Railway.
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20
South Lüliangshan Tunnel (China)
About 23 km. Watang–Rizhao railway.
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21
Desheng Tunnel (China)
About 23 km. Chengdu–Lanzhou Railway.
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22
Xiaoshan Tunnel (China)
About 23 km. Haoji Railway.
How is this ranking ordered? By people's votes: each ▲ adds a point and each ▼ takes one away. Anyone can vote and add what is missing.
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