Sidonius

Sidonius is a Roman cognomen literally meaning "man from Sidon" Later it was used as a given name, after the saint Sidonius Apollinaris.

Notable people with this name include:
 * Sidonius of Aix (1st Century), protobishop of Augusta Tricastinorum, saint and reputed witness of Jesus' ministry
 * Sidonius Apollinaris (c. 430 – c. 489), Gallo-Roman poet, diplomat, bishop and saint
 * Sidonius (Irish saint) (c. 620 – c. 690)
 * Sidonius, Bishop of Passau (fl. 754–764)