Tarruntenus Paternus (or Tarruntenius) (d.183) was the secretary (ab epistulis latinis) of Marcus Aurelius. During the Marcomannic Wars the Emperor appointed him to command a band of Cotini, a Gaulish tribe from the area around the present-day Czech Republic, Poland, and Silesia at their request, but they "treated him shamefully."
Paternus composed a work in four books De Re Militari, now lost. Extracts from the work appear in Justinian's Digest, Aemilius Macer, and Vegetius, who called him "diligentissimus juris militaris adsertor."
- Cassius Dio Cocceainus; Cary (tr), Earnest (1955). Dio's Roman History vol. IX (book LXXI. Loeb Classical Library. p. 17. Retrieved Oct 12, 2018.
- Roby, Henry John (1886). An Introduction to the Study of Justinian's Digest. Cambridge University Press. p. 186.