The National Museum of Iran (Persian: Muze ye Melli ye Irān – موزهٔ ملی ایران) is located in Tehran, Iran.
It is an institution formed of two complexes, including the Museum of Ancient Iran (Muze ye Irān e Bāstān) which was inaugurated in 1937, and the Museum of the (post-) Islamic Era (Muze ye Dowrān e (pasā) Eslāmi) which was inaugurated in 1972.
It hosts historical monuments dating back through preserved ancient and medieval Iranian antiquities, including pottery vessels, metal objects, textile remains, and some rare books and coins.
There are a number of research departments in the museum, including Paleolithic and Osteological departments, and a center for Pottery Studies.
The brick building of the Museum of Ancient Iran was designed by the French architect Andre Godard in the early 20th century. It was influenced by Sassanid vaults, particularly the Eyvān e Kasrā at Ctesiphon. With an area of approximately 11000 square meters, its construction began in 1935 and was completed within two years by Abbas Ali Memar and Morad Tabrizi. The complex was officially inaugurated in 1937.