The Helsinki Metro, the first rapid transit system of Finland, is opened to the general public.

The Helsinki Metro is a rapid transit system serving the Helsinki capital region, Finland. It is the only metro system in Finland as well as the world's northernmost metro system. It was opened to the general public on 2 August 1982 after 27 years of planning. It is operated by Helsinki City Transport and Metropolitan Area Transport Ltd for Helsinki Regional Transport Authority and carries 92.6 million passengers per year.

Rapid transit or mass rapid transit (MRT) or heavy rail, commonly referred to as metro, is a type of high-capacity public transport that is generally built in urban areas. A grade separated rapid transit line below ground surface through a tunnel can be regionally called a subway, tube, metro or underground. They are sometimes grade-separated on elevated railways, in which case some are referred to as el trains – short for "elevated" – or skytrains. Rapid transit systems are usually electric railways that, unlike buses or trams, operate on an exclusive right-of-way, which cannot be accessed by pedestrians or other vehicles.

August 2 is the 214th day of the year in the Gregorian calendar; 151 days remain until the end of the year.