Ennio Filonardi (1466–1549) was an Italian bishop and Cardinal. He was born in Bauco, present-day Boville Ernica.

This article needs additional citations for verification. (November 2016)

You can help expand this article with text translated from the corresponding article in Italian. (July 2018) Click [show] for important translation instructions. View a machine-translated version of the Italian article. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Consider adding a topic to this template: there are already 3,067 articles in the main category, and specifying|topic= will aid in categorization. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Italian Wikipedia article at [[:it:Ennio Filonardi]]; see its history for attribution. You may also add the template {{Translated|it|Ennio Filonardi}} to the talk page. For more guidance, see Wikipedia:Translation.

As bishop of Veroli, from 1503 to 1538, he left an architectural mark on the cathedral.^[1] In 1538 he was bishop of Montefeltro; on 25 April 1549 he resigned as Bishop of Montefeltro in favor of his nephew Ennio Massari Filonardi.

From the time of his status as close advisor to Pope Innocent VIII, he became one of the salient figures^[vague] of the papal court. He acted as papal nuncio to Switzerland.^[2] He became Bishop of Albano in 1546.

He died during the conclave that elected Pope Julius III,^[3] having himself been considered papabile. This is quite unlikely, since Filonardi was already eighty-three years old; he was not on any list of papabili provided by any of the Crowns; and he received not a single vote from the first ballot on 4 December to the day of his death on 19 December 1549.^[4]