The Shahnameh of Shah Tahmasp or Houghton Shahnameh is one of the most famous illustrated manuscripts of the Shahnameh, the national epic of Greater Iran, and a high point in the art of the Persian miniature. It is probably the most fully illustrated manuscript of the text ever produced. When created, the manuscript contained 759 pages, 258 of which were miniatures. These miniatures were hand-painted by the artists of the royal workshop in Tabriz under rulers Shah Ismail I and Shah Tahmasp I. Upon its completion, the Shahnameh was gifted to Ottoman Sultan Selim II in 1568. The page size is about 48 x 32 cm, and the text written in Nastaʿlīq script of the highest quality. The manuscript was broken up in the 1970s and pages are now in a number of different collections around the world.

The Shahnameh, also transliterated Shahnama, is a long epic poem written by the Persian poet Ferdowsi between c. 977 and 1010 CE and is the national epic of Greater Iran. Consisting of some 50,000 distichs or couplets, the Shahnameh is one of the world's longest epic poems, and the longest epic poem created by a single author. It tells mainly the mythical and to some extent the historical past of the Persian Empire from the creation of the world until the Muslim conquest in the seventh century. Iran, Azerbaijan, Afghanistan, Tajikistan and the greater region influenced by Persian culture such as Armenia, Dagestan, Georgia, Turkey, Turkmenistan and Uzbekistan celebrate this national epic.