Martinian and Processus (Italian: Martiniano and Processo) were Christian martyrs of ancient Rome.

[1] The Bollandist Hippolyte Delehaye and the Roman Martyrology[2] state they were buried in some unknown year in the Cemetery of Damasus at the road's second milestone.

The old catalogues of the burial places of the Roman martyrs likewise mention the graves of both saints on this road.

In 1605, their relics were placed in a porphyry urn under the altar at St. Peter's, which is flanked by two antique yellow columns.

[8] The 1969 revision of the General Roman Calendar added a feast of the First Martyrs of the Church of Rome on June 30, immediately after that of Saints Peter and Paul.

Nonetheless, Martinian and Processus remain in the Roman Martyrology, the official list of saints recognized by the Catholic Church.