Assyro-Babylonian goddess of cedar-tree mountains.
Irnini Mons has a diameter of 475 km and is located in Venus' northern hemisphere. Sappho Patera, a 225 km diameter wide, caldera-like, depression tops the summit. The primary structural features surrounding Irnini Mons are graben, seen as linear depressed sections of rock, radiating from the central magma chamber. (wikipedia entry)
A mons is a mountain. On Venus they are named after goddesses, miscellaneous (also one physicist).
Image Source. Marker locations are approximate and may not always appear to align with image on map.