The Gesta Hunnorum et Hungarorum (Latin: "Deeds of the Huns and Hungarians") is a medieval chronicle written mainly by Simon of Kéza around 1282–1285. It is one of the sources of early Hungarian history. It is also known as the Gesta Hungarorum (II) (Latin: "Deeds of the Hungarians"), the "(II)" indicating its status as an expansion of the original Gesta Hungarorum (written around 1200).
The work is dated to 1282–1285 as it includes the Battle of Lake Hód (1282) but does not mention the Second Mongol invasion of Hungary in 1285.
The work combines Hunnish legend with history. It consists of two parts: the Hunnish legend ("Hunnish Chronicle"), <!--, mainly from other chronicles mentioned above, --- Which chronicles? Only first Gesta mentioned above.-->expanded with Hungarian oral tales;