| Country: | TUR |
| Type: | O |
| Otoyol | |
| Markers: | |
| Caption: | Route markers for three Turkish Motorways |
| Map: | Motorway Map of Turkey (revised).png |
| Map Notes: | Otoyol network in Turkey as of February 2022. Motorways in use, under construction and projected. |
| Maint: | Karayolları Genel Müdürlüğü |
| Formed: | 1968 |
| Length Km: | 3,726[1] |
| Length Ref: | (2023) |
| Label1: | Otoyols |
| Field1: | Otoyol XX (O-XX) |
Otoyol routes in Turkey follow a regional based two-digit numbering system. All routes have the prefix O on all signage and maps. Motorways that start in the Marmara Region are all single digit. Motorways that start in The Central Anatolia Region have a first digit of two. Motorways starting in the Aegean Region have a first digit of three. Motorways starting in the Mediterranean Region and Southeastern Anatolia Region have a first digit of five. The O-21A is the only motorway to have a letter assigned to it. Most motorways in Turkey have six lanes (3+3 lanes), however there are sections of some motorways with only four (2+2) lanes. The motorways extended to 28 of the country's 81 provincial-level administrative divisions.
As of October 2024, there are 3,796 km of toll motorways network (otoyollar) in service.[2]
| width=100 | Number | Length (km) | width=20 | Length (mi) ! | width=200 | Northern or western terminus ! | width=200 | Southern or eastern terminus ! | width=40 | Built ! | Notes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| style='background: #dcdcdc' | 20.5 | 12.7 | in Eyüpsultan, Istanbul | Bağdat Avenue in Kadıköy, Istanbul | 1973 | Istanbul Inner Beltway | |||||
| style='background: #dcdcdc' | 36.9 | 22.9 | in Mahmutbey, Istanbul | in Kozyatağı, Istanbul | 1988 | Istanbul Outer Beltway | |||||
| style='background: #dcdcdc' | 246.9 | 153.4 | near Edirne | in Eyüpsultan, Istanbul | 1987 | ||||||
| style='background: #dcdcdc' | 372 | 231.2 | /O1-O2 connector in Ataşehir, Istanbul | near Sincan, Ankara | 1984 | ||||||
| 409.4 | 254.4 | near Gebze, Kocaeli | in Bornova, İzmir | 2016 till 2019 | Section from Bursa North to Gebze including Osman Gazi Bridge opened in 2016. | ||||||
| style='background: #dcdcdc' | 101 | 62.8 | near Malkara, Tekirdağ | near Lapseki, Çanakkale | 2022 | Section from Malkara to Lapseki including 1915 Çanakkale Bridge, the longest suspension bridge in the world, opened in 2022. | |||||
| 275.2 | 171.1 | near Kınalı, Istanbul | near Akyazı, Sakarya | 2016 till 2020 | Yavuz Sultan Selim Bridge opened in 2016. | ||||||
| style='background: #dcdcdc' | 110 | 68.4 | Road forms complete ring around Ankara | Road forms complete ring around Ankara | 1987 | Ankara beltway | |||||
| style='background: #dcdcdc' | 399.5 | 248.3 | near Gölbaşı, Ankara | near Tarsus, Mersin | 1984 till 2020 | ||||||
| style='background: #dcdcdc' | 32 | 19.9 | near Çakmak Bucağı, Konya | near Eminlik, Niğde | 1992 | ||||||
| style='background: #dcdcdc' | 34.1 | 21.2 | near Çağlayan, Bursa | near Turanköy, Bursa | 2006 | ||||||
| style='background: #dcdcdc' | 60.4 | 37.5 | in Menemen, İzmir | in Balçova, İzmir | 1993 till 2006 | Izmir Beltway | |||||
| style='background: #dcdcdc' | 127.8 | 79.4 | in Buca, İzmir | in Aydın | 1996 till 2004 | ||||||
| style='background: #dcdcdc' | 165 | 102.5 | in Aydın | in Denizli | 2023 till 2024 | ||||||
| style='background: #dcdcdc' | 77.7 | 48.3 | in Çeşme, İzmir | in Balçova, İzmir | 1992 till 1996 | ||||||
| style='background: #dcdcdc' | 76 | 47 | Port of Çandarlı near Çandarlı, İzmir | in Menemen, İzmir | 2019 | ||||||
| 99.2 | 61.6 | in Çeşmeli, Mersin | in Adana | 1992 | |||||||
| 365 | 226.8 | in Adana | near Şanlıurfa | 1992 | |||||||
| 150 | 93.2 | near Ceyhan | in İskenderun | 1993 | |||||||
| 35 | 21.7 | in Gaziantep | in Gaziantep | 2013 | Gaziantep Beltway |
| width=100 | Number | Length (km) | width=20 | Length (mi) ! | width=200 | Northern or western terminus ! | width=200 | Southern or eastern terminus ! | width=40 | Opens! | Notes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| style='background: #dcdcdc' | 114 | 70.8 | near Malkara, Tekirdağ | near Kınalı, Istanbul | Part of Kınalı-Balıkesir Motorway. | ||||||
| 45 | 28 | near Nakkaş, Istanbul | near Başakşehir, Istanbul | 2025 | |||||||
| style='background: #dcdcdc' | 41 | 25.8 | in Kızkalesi, Mersin | near Çeşmeli, Mersin | 2025 | ||||||
| style='background: #dcdcdc' | 155 | 96.3 | in Antalya | in Alanya | Part of Afyon–Antalya–Alanya Motorway. Afyonkarahisar-Burdur-Antalya section still in planning phase. | ||||||
| style='background: #dcdcdc' | 78 | 48.5 | near İskenderun, Hatay | near Cilvegözü, Reyhanlı, Hatay | İskenderun-Cilvegözü Motorway (border crossing) | ||||||
| style='background: #dcdcdc' | 31.3 | 19.5 | near Dörtyol, Hatay | near Hassa, Hatay | Dörtyol-Hassa Motorway | ||||||
| style='background: #dcdcdc' | 119 | 73.9 | in Mamak, Ankara | in Delice, Kırıkkale | Part of Ankara-Samsun Motorway. Delice-Samsun section still in planning phase. | ||||||
| width=100 | Number | Length (km) | width=20 | Length (mi) ! | width=200 | Northern or western terminus ! | width=200 | Southern or eastern terminus ! | width=140 | Tender Date! | Notes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| style='background: #dcdcdc' | 130 | 80.8 | in Sivrihisar, Eskişehir | in Tulumtaş, Ankara | Part of Izmir–Ankara Motorway. İzmir-Sivrihisar section still in planning phase. | ||||||
| 454 | 282.1 | near Şanlıurfa | near Habur, Silopi, Şırnak | Şanlıurfa-Mardin-Habur Motorway (including link to Diyarbakır) (border crossing) | |||||||
| width=100 | Number | Length (km) | width=20 | Length (mi) ! | width=200 | Northern or western terminus ! | width=200 | Southern or eastern terminus ! | width=40 | Tender Date ! | Notes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| style='background: #dcdcdc' | 30 | 18.1 | in Taşucu | in Kızkalesi | N/A | ||||||
| style='background: #dcdcdc' | 12 | 7.46 | near Sasalı, İzmir | near İnciraltı, İzmir | N/A | - Gulf of İzmir Passage Project between Çiğli (Sasalı) and Balçova (İnciraltı); including one undersea tunnel and one bridge | |||||
| style='background: #dcdcdc' | 41 | 25.5 | near Menemen, İzmir | near Buca, İzmir | N/A | İzmir 2. peripheral motorway | |||||
| style='background: #dcdcdc' | 155 | 96.3 | in Denizli | near Bucak, Burdur | N/A | Denizli-Burdur section of Aydın-Denizli-Burdur Motorway | |||||
| style='background: #dcdcdc' | 137 | 85.1 | near Lapseki, Çanakkale | near Balıkesir | N/A | Lapseki-Balıkesir section of Kınalı-Balıkesir Motorway | |||||
| style='background: #dcdcdc' | 350 | 217.5 |
