Qasr El Eyni Street (Egyptian Arabic: شارع القصر العيني alternatively transliterated as Kasr El Ainy) is one of the oldest streets in Downtown Cairo, Egypt.
Qasr El Eyni (Arabic for Palace of El Einy) owes its name to the nearby landmark of the same name, El Einy Pasha's palace, which now hosts one of the oldest and most prestigious medical schools in the Middle East and Africa. The street is also known as Tahrir Qasr El Einy Street because of its outlet into Tahrir Square.
Qasr El Einy Street is located in Downtown Cairo, running parallel to the Cairo Metro Line 1, spanning El Sayeda Zeinab, Saad Zaghloul and El Sadat stations along its length. The street runs NNE from the National Cancer Institute to Tahrir Square, a distance of 2.4 kilometres (1.5 miles). Tahrir Square was built in the late 1860s, around the Khairy Pasha Palace, which later hosted the American University in Cairo's campus, built in the 1920s. Qasr El Einy used to be a two-way street in the 1990s.
The Metro's Sadat Station serves Tahrir Square, providing links to Giza, Helwan, Maadi, and other districts and suburbs of Greater Cairo. The area around Tahrir Square includes the Egyptian Museum, the Headquarters of the Arab League building, the Mogamma government building, the original downtown campus of the American University in Cairo, the Nile Hotel, and used to host the National Democratic Party headquarters building until it was demolished in the aftermath of the Egyptian revolution of 2011.