Tuusula (Finnish: [ˈtuːsulɑ]; Swedish: Tusby [ˈtʉːsby]) is a municipality in Finland, located in the southern interior of the country.

Tuusula is part of the Helsinki metropolitan area, which has approximately 1.61 million inhabitants.

A laurel branch in the coat of arms of Tuusula refers to the local artist community and a wheellock was borrowed from the coat of arms of the Stålhane noble family, which has long been influential in Tuusula.

[6] Tuusula, lying on the shores of Tuusulanjärvi lake, is located in the province of Southern Finland and is part of the Uusimaa region.

[7] The most significant main road connection between Hyrylä and Helsinki is the Tuusulanväylä motorway.

Huikko, Hyrylä, Jokela, Jäniksenlinna, Kellokoski, Kirkonkylä, Lahela, Myllykylä, Nahkela, Paijala, Riihikallio, Ruotsinkylä, Ruskela, Rusutjärvi, Savikulma, Siippoo, Vanhakylä The area in what is now Tuusula was located in the larger municipality of Sipoo.

The Tuusulanjärvi lake attracted many artists who wanted to paint the beautiful landscape.

Following the footsteps of Aleksis Kivi, the Finnish national poet who spent the last years of his life in a hut on the shores of the lake, Jean Sibelius, Juhani Aho, and Pekka Halonen even established their main residences here.