Ulpius Marcellus (mid‐ to late second century ce) was a prominent Roman jurist of the age of Antoninus Pius and Marcus Aurelius who participated in their imperial councils. Little is known about his life; he was probably born about 120–5 and died around 185. Marcellus, well versed in rhetoric and an original legal thinker, is often represented in Justinian's Digest. His production is not vast but still significant. He wrote a Commentary on the Lex Iulia et Papia, Notes on Pomponius's single book of rules, a Single book of answers, a monograph about the Duties of a consul, Notes on Julian's Digest, and a Digest.
