Tâceddîn İbrahim b. Hızır Ahmedî (c. 1334/5-1412) was a native of Anatolia. He went to Cairo to study and then entered the service of the Beg of Germiyan, Süleyman Şah. In some unspecified time he entered the Ottoman court.
Various poetical and moral works. His İskendernâme("Alexander's Book") includes a world history, the last part of which is the Tevârîh-i Mülûk-i âl-i ‘Osmân, covering the period from Ertoğrul up to Süleyman Çelebi (d. 1411). İskendernâme is considered the first work of the Ottoman advice literature. It was originally compiled for the Beg of Germiyan, but finally was dedicated to the Ottoman sultan Bayezid I.