Part of Petsamo Province is ceded by the Soviet Union to Finland.

Pechengsky District (Russian: Пе́ченгский райо́н; Finnish: Petsamo; Norwegian: Peisen; Northern Sami: Beahcán; Skolt Sami: Peäccam) is an administrative district (raion), one of the six in Murmansk Oblast, Russia. As a municipal division, it is incorporated as Pechengsky Municipal District. It is located in the northwest of the oblast, on the coast of the Barents Sea (by the Rybachy Peninsula, which is a part of the district) and borders Finland in the south and southwest and Norway in the west, northwest, and north. The area of the district is 8,662.22 square kilometers (3,344.50 sq mi). Its administrative center is the urban locality (an urban-type settlement) of Nikel. Population: 38,920 (2010 Census); 46,404 (2002 Census); 59,495 (1989 Census). The population of Nikel accounts for 32.8% of the district's total population.