Otoyol 20

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O-20
Ankara Beltway Ankara Çevre yolu
Route information
Part of E88 / E89 / E90
Length	110 km (68 mi)
Location
Country	Turkey
Regions	Central Anatolia
Provinces	Ankara Province
Major cities	Ankara
Highway system
Highways in Turkey Motorways List State Highways List
← O-7 → O-21

Otoyol 20 (English: Motorway 20), O-20, Ankara Çevre yolu (English: Ankara Beltway), is a motorway in Ankara, Turkey that forms the ring road of the city. The 110 km (68 mi) long beltway connects in the northwest to the Anatolia Motorway, and in the south to Ankara-Adana Motorway.

The beltway is a four lane motorway in both directions on its length.

The beltway is the only ring motorway in Turkey to form a complete ring.

This article contains a bulleted list or table of intersections which should be presented in a properly formatted junction table. Please consult this guideline for information on how to create one. Please improve this article if you can. (November 2021)

Province	District	Exit No.	Name	Notes
Ankara	Yenimahalle	K1	O-4 / E80 – Bolu, İzmit, Istanbul
Ankara	Etimesgut	K2	1. TBMM Cd.
Ankara	Etimesgut	K3	D.140 – Ayaş
Ankara	Etimesgut	K4	Istasyon Cd.
Ankara	Etimesgut	K5	Ahi Mesud Blvd.
Ankara	Etimesgut	K6	D.200 / E90 – Eskişehir, Uşak, İzmir
Ankara	Gölbaşı	K7	Turgut Özal Blvd.
Ankara	Gölbaşı	K8	O-21 – Konya, Adana
Ankara	Gölbaşı	K9	D.750 / E90 – Konya, Adana
Ankara	Çankaya		Karataş Viaduct	600 m
Ankara	Çankaya	K10	Nato Yolu Cd.
Ankara	Mamak	K11	Mavi Göl Cd.
Ankara	Mamak		Bayındır Dam Bridge	400 m
Ankara	Mamak	K12	D.200 / E88 – Samsun
Ankara	Mamak		Samsun Road Bridge	400 m
Ankara	Mamak	K13	Yeşil Kuşak Cd.
Ankara	Altındağ		Çubuk 1 Dam Bridge	300 m
Ankara	Keçiören	K14	D.140 – Esenboğa International Airport
Ankara	Keçiören	K15	Bağlum Blvd.
Ankara	Keçiören	K16	Yozgat Blvd.
Ankara	Yenimahalle	K17	Anadolu Blvd.
Ankara	Yenimahalle	K18	Batıkent Yolu
Ankara	Yenimahalle	K19	D.750 – Bolu, Sakarya, Istanbul