Lahti in Finland is a Finnish city bordering the Vesijärvi lake. It was originally a part of Hollola, it has since grown considerably larger than its current neighbor. The symbol of the city is a burning train wheel. The terrain is unusually hilly, the city being situated on a series of ridges created in the last glacial period.

Lahti city is situated at the southern end of Vesijärvi Lake. The city is popular as a winter-sports center with annual ski meets. The city has facilities of a ski stadium, multi-purpose sports hall, ice stadium, and several ski slopes in the vicinity. The World Ski Championships of 1978 and 1989 were held at Lahti. Lahti city is located in an extensive timber area and is the center of the Finnish furniture industry, with lumber, plywood, and spool mills.

Lahti in Finland is the site of art and folk museums, a church designed by Alvar Aalto, a municipal theater, a concert hall, and the largest radio transmitter in Finland. The city hall (was designed by the Finnish architect Eliel Saarinen. Lahti city is best known for its annually held World Cup winter games called "Salpausselän kisat". Lahti also has perhaps the best known symphony orchestra in Finland, Sinfonia Lahti. It concentrates on Sibelius's music.