Pervomayskoye, Leningrad Oblast

Pervomayskoye (Russian: Первома́йское; Finnish: Kivennapa) is a rural locality (a settlement) in Vyborgsky District of Leningrad Oblast, Russia, located on the Karelian Isthmus, 60 kilometers (37 mi) northwest of St. Petersburg.

It serves as the administrative center of Pervomayskoye Settlement Municipal Formation—an administrative division of the district—as well as of Pervomayskoye Rural Settlement, which that administrative division is municipally incorporated as.

The name of Kivennapa seems to come from an old Scandinavian term for a border fortification, kivo näb, but the foreign term was soon corrupted by the locals into Kivennapa, meaning "rock's navel".

The first mention of the settlement comes from 1445 as Kiwinapa, when it was likely already a separate parish.

The borders of the Kivennapa parish remained unchanged until 1904, when five villages on the coast were separated from it, forming the Terijoki municipality.