Orimattila

Orimattila () is a city in Päijät-Häme region, Finland. The southern part of Lahti is connected to the village of Pennala, which is located in the northern part of the Orimattila municipality. Its neighboring municipalities are Hollola, Iitti, Kärkölä, Lahti, Lapinjärvi, Mäntsälä, Myrskylä and Pukkila.

Artjärvi (; ) is a former municipality of Finland. It was consolidated with the town of Orimattila on January 1, 2011.