You can help expand this article with text translated from the corresponding article in Spanish. Click [show] for important translation instructions. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Spanish Wikipedia article at [[:es:Autopista AP-51]]; see its history for attribution. You may also add the template {{Translated|es|Autopista AP-51}} to the talk page. For more guidance, see Wikipedia:Translation.

Autopista AP-51
Autopista Ávila - Villacastín
Route information
Length	24 km (15 mi)
Major junctions
From	Villacastín
To	Ávila
Location
Country	Spain
Highway system
Highways in Spain Autopistas and autovías National Roads

The Autopista AP-51 (also known as Autopista Ávila - Villacastín and Conexión Ávila) is an autopista in the community of Castile and León, Spain. Opened in late 2002, it runs for 24 kilometres (15 mi) between the Autopista AP-6 at the village of Villacastín, in the province of Segovia, and the eastern outskirts of the city of Ávila. ^[1] It runs parallel to the N-110. As a toll road, it is operated by the Abertis Group. ^[2]

Upon reaching Ávila, the highway then runs for a further 9 kilometres (5.6 mi) as an autovía, the A-51, forming a partial beltway around the north of Ávila and connecting with the Autovía A-50.

References