Xantes Mariales (born Sante Pinardi; Venice c. 1580 – Venice, 17 April 1660) was an Italian Dominican theologian.

This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (April 2014)

He was of a noble Venetian family. At an early age he entered the Dominican convent of Sts. John and Paul. Remarkable for his versatility and prodigious memory, he was sent to Spain, where he completed his studies.

He first taught at Venice, then at Padua where he three times exercised the office of regent. He was twice exiled by the Venetian senate, for showing excessive support for the Papacy. At Milan, Ferrara, and Bologna where he took refuge, he was highly esteemed.

From 1624 onwards he led a retired life at Venice, devoting his time to prayer, reading, and study. He died at Venice from apoplexy.

Among his works are:

• "Controversiæ ad universam Summam theol. S. Th. Aq." (Venice, 1624);
• "Amplissimum artium scientiarumque omnium amphitheatrum" (Bologna, 1658).

• Mandelli, Vittorio (2015). "PINARDI, Sante". Dizionario Biografico degli Italiani, Volume 83: Piacentini–Pio V (in Italian). Rome: Istituto dell'Enciclopedia Italiana. ISBN 978-8-81200032-6.
• Hugo von Hurter, Nomenclator, who summarizes "Scriptores O. P.", II (Paris, 1721), 600;
• "Elogium" in "Acta Capituli Generalis O. P." (Rome, 1670).

 This article incorporates text from a publication now in the public domain: Herbermann, Charles, ed. (1913). "Xantes Mariales". Catholic Encyclopedia. New York: Robert Appleton Company.