Az Zulfi (also Zulfi, Zulfy City or Al Zulfi or Az Zilfi) is a city in Riyadh Province in central Saudi Arabia, about 260 kilometres northwest of Riyadh. It is connected by Roads 418 and 535 which both link with the main Highway 65 which connects Riyadh to Buraidah which is about 101 kilometres by road to west of Al Zulfi. Zulfi also forms a governorate of Riyadh Province. The Al-Yamama/Tuwaiq mountain range begins in the desert to the north of Al Zulfi.