Saint Nicetius (Nicetus, Nicet or Nizier) (513 – 2 April 573) was Archbishop of Lyon, then Lugdunum, France, during the 6th century.

Nicetius was descended from an ancient noble Gaulish family in Burgundy, and, by the care of virtuous parents, received a learned and pious education.

There is an early life of Nicetius which can be found in Vita Nicetii Episcopi Lugdunensis, ed.

B. Krusch, Monumenta Germaniae Historica Scriptores Rerum Merovingicarum III pp.

518–524 and is translated online here Gregory of Tours - who refers to Nicetius as his uncle- also wrote a supplementary life to him in his Vita Patrum.