Lapinlahti (Swedish: Lappviken) is a quarter in Helsinki, part of the Länsisatama neighbourhood.
Lapinlahti Hospital, completed in 1841, was the first mental hospital in Finland.
As of 2005[update], only 7 people live in Lapinlahti.
Coordinates: 60°10′N 024°55′E / 60.167°N 24.917°E