This incomplete list of tunnels in Turkey includes any road, rail, or waterway tunnel in Turkey. Tunnels are listed in decreasing order of their length.
Road tunnels Trabzon (Maçka) - Gümüşhane (Torul), New Zigana Tunnel – 14,448 m left, 14,477 m right Rize (İkizdere) - Erzurum (İspir), Ovit Tunnel – 2 x 14,346 m Giresun, Dereli-Şebinkarahisar, Eğribel Tunnel – 2 x 5,900 m İstanbul, Eurasia Subsea Tunnel (subsea) – 2 x 5,400 m Çankırı (Ilgaz) - Kastamonu, Ilgaz Tunnel – 5,488 m and 5,480 m. Artvin, Hopa (Çavuşlu) - Borçka (Çifteköprü), T3 (3. Cankurtaran) Tunnel – 2 x 5,200 m Antalya(İbradı)-Konya(Derebucak), Demirkapı Tunnel – 2 x 5,068 m Bayburt (Aydıntepe) - Gümüşhane - Trabzon (Araklı), Salmankaş (Şehit Hamit Şahin) Tunnel – 2 x 4,150 m İzmir-Manisa, Sabuncubeli Tunnel – 2 x 4,070 m Kahramanmaraş-Göksun, Nuri Pakdil Tunnel – 2 x 4,044 m Çanakkale, Ayvacık-Küçükkuyu, T2 (Troya) Tunnel – 2 x 4,017 m Hakkari, Yüksekova-Yeniköprü, T1 Tunnel – 2 x 3,965 m Rize, İyidere-İkizdere, Güneyce Tunnel – 2 x 3,920 m Ordu, Perşembe-Fatsa, Nefise Akçelik (Hapan/Hapağan) Tunnel – 2 x 3,825 m İstanbul, Çamlıca-Libadiye Tunnel – 2 x 3,690 m Ordu Ring Road, Boztepe Tunnel – 2 x 3,313 m Van, Başkale-Gürpınar, Güzeldere (32 Curve) Tunnel – 2 x 3,137 m Rize Ring Road, Salarha Tunnel – 2 x 2,977 m Kahramanmaraş-Göksun, Aşık Mahzuni Şerif Tunnel – 2 x 2,895 m Trabzon, Maçka New Tunnel – 2 x 2,802 m Trabzon(Maçka)-Gümüşhane(Torul), Başar Tunnel – 2 x 2,676 m Denizli, Honaz Tunnel – 2 x 2,640 m Gümüşhane-Bayburt, Gümüşhane T5 Tunnel – 2 x 2,564 m Çanakkale, Eceabat-Gelibolu, Anafartalar Tunnel – 1 x 2,560 m Kahramanmaraş-Göksun, Mehmet Akif İnan Tunnel – 2 x 2,545 m Bilecik-Vezirhan, Osmangazi (Kocatepe) Tunnel – 2 x 2,474 m Trabzon, Coastal Highway, Akyazı (Yıldızlı) Tunnel – 2 x 2,472 m Malatya-Elazığ, Kömürhan Tunnel – 2 x 2,400 m İstanbul, Dolmabahçe-Bomonti Tunnel – 2 x 2,390 m Bartın, Çakraz-Kurucaşile, Dizlermezeci (T3) Tunnel – 2 x 2,350 m Bursa-Orhaneli, Doğancı Variant Tunnel – 1 x 2,344 m Mersin, Yenikaş-Gözce, Karadere Tunnels, T8 Tunnel – 2 x 2,309 m Ardahan, Çıldır-Aktaş, Aşık Şenlik (Mozeret) Tunnel – 2 x 2,308 m Van (Gevaş) - Bitlis (Tatvan), Kuskunkıran (Kuzgunkıran) Tunnel – 2 x 2,306 m (2nd tube projected) Artvin-Yusufeli, Oruçlu Ripage Tunnel – 1 x 2,277 m Erzurum(Uzundere)-Artvin(Yusufeli), Pirinkayalar (Lake Tortum) Tunnel – 1 x 2,272 m Rize, Ardeşen-Ayder, Hala Tunnel – 1 x 2,265 m Gümüşhane-Bayburt, Gümüşhane T4 Tunnel – 2 x 2,255 m Giresun-Tirebolu, Tirebolu Volunteer 42nd Regiment Tunnels, Tirebolu Variant-1 (T1) Tunnel – 2 x 2,175 m Yalova, Esenköy-Armutlu, T1 Tunnel - 1 x 2,077 m Ankara (Kızılcahamam) – Çankırı (Çerkeş) Tunnel – 1 x 2,071 m Ordu Ring Road, Öceli Tunnel – 2 x 2,034 m İstanbul, Sarıyer-Çayırbaşı Tunnel – 2 x 2,025 m Sinop-Boyabat, Ahmet Muhip Dıranas Tunnel – 1 x 2,016 m Ordu, Ünye Bypass Road, Yunus Emre (Saca) Tunnel – 2 x 1,996 m Bitlis Bypass Road, T1 (8 August/Bitlis) Tunnel – 2 x 1,947 m Gümüşhane, Kürtün-Torul, Budak Tunnel – 2 x 1,942 m Bartın, Çakraz-Kurucaşile, Çakraz (T1) Tunnel – 2 x 1,936 m Ordu, Mesudiye (Pınarlı-Topçam), T2 (Topçam) Tunnel – 1 x 1,920 m Trabzon, Araklı-Arsin, Araklı (Konakönü) Tunnel – 2 x 1,906 m Gümüşhane, Kürtün-Torul, Kirazlık Tunnel – 1 x 1,851 m Giresun (Doğankent) - Gümüşhane (Kürtün), Güvenlik (Doymuş) Tunnel – 1 x 1,835 m Malatya (Doğanşehir) - Adıyaman (Gölbaşı), Erkenek Tunnel – 2 x 1,830 m Ordu, Altınordu (Gümüşköy) - Mesudiye (Pınarlı), T10 (Çağlayan) Tunnel – 1 x 1,767 m Gümüşhane-Bayburt, Gümüşhane T1 Tunnel – 2 x 1,720 m Trabzon (Maçka) - Gümüşhane (Torul), Old Zigana Tunnel – 1 x 1,702 m Çanakkale, Ayvacık-Küçükkuyu, T1 (Assos) Tunnel – 2 x 1,693 m Antalya, Alanya-Gazipaşa, Hasbahçe-Kargıcak Tunnels, T2 (Dim / Kestel) Tunnel – 2 x 1,692 m Sinop-Gerze, Demirciköy Tunnel – 2 x 1,680 m İzmir, Konak Tunnel – 2 x 1,674 m Karaman (Taşkent) - Antalya (Alanya), Çayarası-3 Tunnel – 1 x 1,671 m Gümüşhane-Bayburt, Mescitli Varyant 2 Tunnel – 2 x 1,660 m Sivas, Ulaş-Kangal, Yağdonduran Tunnel – 2 x 1,650 m İstanbul, Kağıthane-Piyalepaşa Tunnel – 2 x 1,625 m Yalova, Esenköy-Armutlu, T2 Tunnel - 1 x 1,609 m Malatya, Akçadağ-Darende, Karahan Tunnel – 2 x 1,600 m Bartın, Çakraz-Kurucaşile, Cumayanı (T2) Tunnel – 2 x 1,600 m Sinop (Gerze) - Samsun (Yakakent), Yenikent Tunnel – 2 x 1,598 m Çorum-Laçin, Kırkdilim T3 Tunnel – 2 x 1,578 m Mersin, Silifke-Aydıncık, Boğsak Tunnel - 2 x 1,573 m Zonguldak-Kilimli, Mithatpaşa-2 (Prof Dr. Teoman Duralı Tunnel-2 / İkinci Makas) Tunnel – 2 x 1,546 m Karaman (Taşkent) - Antalya (Alanya), Çayarası-5 Tunnel – 1 x 1,514 m İstanbul, Sabiha Gökçen Airport Cut-Cover Tunnel – 2 x 1,500 m Kahramanmaraş-Göksun, Necip Fazıl Kısakürek Tunnel – 2 x 1,492 m Zonguldak, Kozlu-Ereğli, Değirmenağzı-4 (Ilıksu-4) Tunnel – 1 x 1,468 m Kahramanmaraş-Göksun, Sezai Karakoç Tunnel – 2 x 1,463 m Giresun-Dereli, Duroğlu Tunnel – 1 x 1,412 m Çorum-Laçin, Kırkdilim T1 Tunnel – 2 x 1,409 m Van, Bahçesaray-Çatak, Karabet Snow Tunnel – 1 x 1,400 m Rize (Çayeli) - Artvin (Pazar), Çayeli Tunnel – 2 x 1,392 m Artvin, Kemalpaşa-Hopa, Selimiye Tunnel – 1 x 1,366 m Çanakkale, Eceabat-Gelibolu, Conkbayırı Tunnel – 1 x 1,355 m İstanbul, Kasımpaşa-Hasköy Tunnel – 2 x 1,316 m Trabzon-Maçka, Deliklitaş Tunnel – 2 x 1,306 m Antalya, Kemer-Kumluca, Phaselis (Alacasu) Tunnel – 2 x 1,305 m Sinop-Gerze, Çiftlik (Çiflikköy) Tunnel – 2 x 1,285 m Erzurum (İspir) - Artvin (Yusufeli), T2 (Arkun / Arkın) Tunnel – 1 x 1,275 m Gümüşhane (Kürtün) - Giresun (Doğankent), Elceğiz Tunnel – 1 x 1,265 m Ankara, Çayırhan-Nallıhan, Çayırhan Connection Tunnel – 2 x 1,262 m Rize, Pazar-Çayeli, Pazar-1 Tunnel – 2 x 1,238 m Karaman (Taşkent) - Antalya (Alanya), Çayarası-4 Tunnel – 1 x 1,211 m Kahramanmaraş-Göksun, Cahit Zarifoğlu Tunnel – 2 x 1,205 m Çorum-Laçin, Kırkdilim T2 Tunnel – 2 x 1,197 m Gaziantep, Şahinbey 100. Yıl Tunnel – 2 x 1,178 m Artvin, Hopa-Kemalpaşa, Kopmuş Tunnel – 1 x 1,162 m Kahramanmaraş-Göksun, Bahaettin Karakoç Tunnel – 2 x 1,143 m Mersin, Yenikaş-Gözce, Karadere Tunnels, T4 Tunnel – 2 x 1,124 m Rize (Fındıklı) - Artvin (Arhavi), Kıyıcık Tunnel – 2 x 1,121 m Trabzon, Of-Çaykara, T2 Tunnel – 2 x 1,115 m Antalya-Göynük, Orhan Büyükalp Tunnel – 2 x 1,100 m Ordu, Topçam-Mesudiye, Mesudiye Tunnel – 1 x 1,109 m Trabzon (Maçka) - Gümüşhane (Torul), Torul Tunnel – 2 x 1,103 m Bartın-Amasra, Amasra Tunnel – 1 x 1,065 m Artvin, Arhavi-Hopa, Arhavi Tunnel – 2 x 1,052 m Bolu (Mengen) - Zonguldak (Devrek), Dorukhan Tunnel – 2 x 1,050 m Ordu, Topçam-Mesudiye, Çaltepe Tunnel – 1 x 1,042 m Ordu, Mesudiye (Pınarlı-Topçam), T1 (Topçam) Tunnel – 1 x 1,040 m Mersin, Silifke-Aydıncık, Karayar Tunnel – 2 x 1,033 m Trabzon Bypass Road, Beşirli Tunnel – 2 x 1,031 m Hakkari (Çukurca) - Şırnak (Uludere), Çukurca Tunnel – 1 x 1,029 m Ordu, Altınordu (Gümüşköy) - Mesudiye (Pınarlı), T6 (Akpınar) Tunnel – 1 x 1,016 m Antalya-Göynük, Altan Ayağ (Beldibi) Tunnel – 2 x 1,013 m Amasya-Tokat(Turhal), Aydınca Şehit Ahmet Özsoy Tunnel – 2 x 1,010 m Rize, İyidere-Derepazarı, Sarayköy-1 Tunnel – 2 x 1,004 m Giresun, Espiye-Keşap, Uluburun Tunnel – 2 x 980 m Amasya, Ferhat Tunnel – 1 x 970 m Rize, Ardeşen-Ayder, Çamlıhemşin Tunnel – 1 x 955 m Muğla, Fethiye-Dalaman, Göcek Tunnel – 2 x 950 m Gümüşhane-Bayburt, Gümüşhane T2 Tunnel – 2 x 936 m Samsun (Havza) - Amasya (Suluova), Havza Tunnel – 2 x 923 m Amasya(Gümüşhacıköy)-Çorum(Osmancık), Badal Tunnel – 2 x 921 m Trabzon (Maçka) - Gümüşhane (Torul), Kürtün Intersection Tunnel – 2 x 916 m Yalova, Esenköy-Armutlu, T3 Tunnel - 1 x 907 m Rize, İyidere-İkizdere, Hurmalık-1 Tunnel – 2 x 878 m Amasya-Taşova, Akdağ Tunnel – 1 x 875 m Rize, İyidere-Derepazarı, Sarayköy-2 Tunnel – 2 x 856 m Mersin, Silifke-Aydıncık, Limankale Tunnel - 2 x 851 m Bilecik-Vezirhan, Ertuğrulgazi (Kaletepe) Tunnel – 2 x 840 m Mersin, Silifke-Aydıncık, Büyükeceli T2 Tunnel – 2 x 836 m Amasya Beltway, T1 Tunnel – 2 x 829 m Mersin (Anamur) - Antalya (Gazipaşa), Anamur-T5 Tunnel – 2 x 827 m Şırnak-Cizre, Cudi-2 (Şehit Jandarma Yüzbaşı Mustafa Erdal) Tunnel – 2 x 822 m Mersin, Yenikaş-Gözce, Karadere Tunnels, T7 Tunnel – 2 x 820 m Rize, İyidere-İkizdere, Hurmalık-2 Tunnel – 2 x 815 m İstanbul, Taksim Square Cut-Cover Tunnel – 2 x 800 m Artvin-Yusufeli, Şehirler-1 Tunnel – 1 x 800 m İstanbul, Şile-Ağva, T5 Tunnel – 2 x 795 m Çanakkale, Eceabat-Gelibolu, 57. Alay (Eceabat) Tunnel – 1 x 792 m Artvin, Hopa-Borçka, T1 (1. Cankurtaran) Tunnel – 2 x 780 m Rize, İyidere-İkizdere, Güneyce 2 Tunnel – 2 x 762 m Gümüşhane-Bayburt, Gümüşhane T3 Tunnel – 2 x 754 m Şırnak-Cizre, Cudi-1 (Şehit Güvenlik Korucusu Dündar Page) Tunnel – 2 x 751 m Ordu, Ünye Bypass Road, Bayramca (Gürecili/Gürecülü) Tunnel – 2 x 741 m Ordu, Topçam-Mesudiye, Ilışar Tunnel – 1 x 729 m İstanbul, Ümraniye-Üsküdar, Vecdi Diker Tunnel – 2 x 720 m Karabük-Yenice National Road, Suçatı Tunnel – 1 x 705 m Gümüşhane, Kürtün-Torul, Özkürtün Tunnel – 1 x 704 m Yalova, Esenköy-Armutlu, T4 Tunnel - 1 x 701 m İstanbul, Beykoz-Kavacık, Halil Ulukurt Tunnel – 2 x 690 m Trabzon Bypass Road, Boztepe Tunnel – 2 x 687 m Malatya, Hekimhan-Yazıhan, Hasançelebi Variant T3 Tunnel – 2 x 669 m Gümüşhane-Bayburt, Taşocağı Tunnel – 2 x 663 m Giresun, Tirebolu Volunteer 42nd Regiment Tunnels, Tirebolu Variant-2 (T2) Tunnel – 2 x 661 m Rize, Pazar-Çayeli, Pazar-2 Tunnel – 2 x 660 m Antalya, Alanya-Gazipaşa, Hasbahçe-Kargıcak Tunnels, T1 (Oba / Tosmar) Tunnel – 2 x 653 m Ordu, Altınordu (Gümüşköy) - Mesudiye (Pınarlı), T7A (Darıcabaşı/Şehit Onur Karakuş) Tunnel – 1 x 653 m Çanakkale, Eceabat-Gelibolu, Arıburnu (Bigalı) Tunnel – 1 x 644 m Batman, Hasankeyf-Gercüş, Hasankeyf Tunnel – 2 x 638 m Artvin, Hopa-Kemalpaşa, Esenkıyı Tunnel – 1 x 638 m Zonguldak-Devrek, Üzülmez (Asma) Tunnel – 2 x 630 m Malatya, Hekimhan-Yazıhan, Çebiş (Hekimhan/Çepiç) Tunnel - 2 x 626 m Ordu, Altınordu (Uzunisa-Gümüşköy), T2 (Gümüşköy) Tunnel - 1 x 620 m Kahramanmaraş-Göksun, Rasim Özdenören Tunnel – 2 x 615 m Bursa (İnegöl) - Bilecik (Bozüyük), Mezit Tunnel – 1 x 606 m Gümüşhane (Kürtün) - Giresun (Doğankent), Günyüzü-2 Tunnel – 1 x 605 m Artvin-Yusufeli, İşhan-3 Tunnel - 1 x 600 m Erzurum (İspir) - Rize (İkizdere), Özbağ-1 Tunnel – 2 x 593 m Trabzon (Maçka) - Gümüşhane (Torul), Köprübaşı Tunnel – 2 x 589 m Burdur (Bucak) - Antalya (Aksu), Kargı Tunnel – 1 x 580 m Adapazarı, Karasu-Kaynarca, Kaynarca Tunnel – 2 x 576 m Trabzon, Of-Çaykara, T1 Tunnel – 1 x 575 m Giresun (Eynesil) - Trabzon (Beşikdüzü), Eynesil Tunnel – 2 x 574 m Trabzon, Sürmene-Of, Çamburnu Tunnel – 1 x 573 m Zonguldak-Devrek, Sapça Tunnel – 2 x 571 m Ordu, Altınordu (Gümüşköy) - Mesudiye (Pınarlı), T7B (Darıcabaşı) Tunnel – 1 x 565 m Ordu, Altınordu (Gümüşköy) - Mesudiye (Pınarlı), T5 (Yeşilpınar/Şehit Şeref Kıran) Tunnel – 1 x 558 m Samsun (Vezirköprü) - Sinop (Durağan), Kocakaya Tunnel – 1 x 553 m Sivas Urban Road, Mevlana Tunnel – 2 x 550 m Erzurum (İspir) - Artvin (Yusufeli), Güllübağ Tunnel – 1 x 550 m Artvin, Kemalpaşa-Hopa, Liman Tunnel – 1 x 546 m İstanbul, Şile-Ağva, T7 Tunnel – 2 x 540 m Mersin (Anamur) - Antalya (Gazipaşa), Anamur-T1 Tunnel – 2 x 537 m Trabzon Bypass Road, Bahçecik Tunnel – 2 x 534 m Rize, Pehlivantaşı-Kalkandere, Pehlivantaşı T-3 Tunnel – 2 x 530 m Ordu, Altınordu (Uzunisa-Gümüşköy), T3 (Gümüşköy) Tunnel – 1 x 525 m Kahramanmaraş-Göksun, Abdurrahim Karakoç Tunnel – 2 x 518 m Erzurum (İspir) - Rize (İkizdere), Özlüce Tunnel – 2 x 516 m Yalova, Esenköy-Armutlu, T6 Tunnel - 1 x 512 m Mersin (Anamur) - Antalya (Gazipaşa), Anamur-T2 Tunnel – 2 x 501 m Elazığ, Maden-Sivrice, Maden Tunnel – 1 x 486 m İstanbul, Şile-Ağva, T6 Tunnel – 2 x 464 m Karaman, Ermenek-Görmeli, Ermenek Tunnel – 1 x 457 m Rize, Ardeşen-Ayder, Hala-2 Tunnel – 1 x 450 m Hakkari, Yüksekova-Esendere, Sarıtaş Tunnel – 1 x 445 Erzurum, İspir-Pazaryolu, İspir Tunnel – 2 x 536 m Kahramanmaraş-Göksun, Erdem Bayazıt Tunnel – 2 x 488 m Gümüşhane-Bayburt, Hacıemin-1 Tunnel – 1 x 469 m Ordu, Altınordu (Gümüşköy) - Mesudiye (Pınarlı), T3 (Pınarlı/Şehit Ahmet Güneşdoğdu) Tunnel – 1 x 445 m