I
Common nouns
- ignigena, -ae m. one born of fire (used of Bacchus)
- incola, -ae c. a native inhabitant
Proper nouns
- Ianigena, -ae c. a child of Janus
- Iarbas (Iarba), -ae m. a king in Africa and rival of Aeneas
- Iliades, -ae m. son of Rhea Silvia, who was also known as Ilia; Romulus or Remus
- Iuba, -ae m. either of two Numidian kings, Juba I of Numidia or Juba II
- Iugurtha, -ae m. a king of Numidia, who was defeated by Marius in 106 BC
- Iura, -ae m. a mountain chain in the northwest of modern Switzerland
Read more about this topic: List Of Masculine Latin Nouns Of The 1st Declension