Vanak is a neighbourhood in the northern part of Tehran, capital of Iran. There is a square and a street named after it. The word Vanak means "Small (ash) Tree" in Persian.

The name derives from the original older village of Vanak (Deh-e Vanak) in the area, and today there is also a square called Vanak nearby. Vanak is one of the most important junctures in Tehran and the midpoint for some of the city's highways such as the Jahan-Kudak (now Haghani), Chamran,