Reconstructionist Roman religion
Revivals of ancient Roman polytheism have taken various forms in the modern era. These efforts seek to re-establish the traditional Roman cults and customs, often referred to as cultus deorum romanorum (worship of the Roman gods), religio romana (Roman religion), via romana agli dei (the Roman way to the gods), Roman-Italic religion, or gentile Roman religion.
Source: Wikipedia — Reconstructionist Roman religion (CC BY-SA 4.0)