Johannes Cuspinianus (December 1473 – 19 April 1529), born Johan Spießhaymer (or Speißheimer), was a German-Austrian humanist, scientist, diplomat, and historian.
At this early age he edited the "Liber Hymnorum" of Prudentius, and made a reputation by his lectures on Virgil, Horace, Sallust, and Cicero.
In 1493, in reward for a panegyric on the life of St. Leopold of Austria, he was crowned as poet laureate and received the title of Master of Arts from Maximilian.
As curator of the university, he exercised great influence on its development, although he was not able to prevent the decline caused by the political and religious disturbances of the second decade of the sixteenth century.
Through this double marriage contract, Bohemia and Hungary passed to the House of Habsburg in 1526, on the death of Sigismund's nephew, Louis II – a result of enormous importance for later central and eastern European history for centuries to come.
Important as a contribution to the study of ancient history is the publication which first appeared, after his death in 1553, namely, the "Fasti consulares", with which were united the "Chronicle" of Cassiodorus and the "Breviarium" of Faenius Rufus.
For a long time, especially after the Battle of Mohács, he busied himself with the Turkish question and printed both political and historical writings on the subject, the most important of which is his "De Turcarum origine, religione et tyrannide".
It was at that time that some of Cuspinian's earlier writings were irrevocably lost because the only copies of them had been kept in the famed Bibliotheca Corviniana at Buda, destroyed during the Ottoman conquest.