Viljanen is a Finnish surname. Notable people with the surname include:
- Eerikki Viljanen (born 1975), Finnish politician
- Elias Viljanen (born 1975), Finnish musician
- Emil Viljanen (1874–1954), Finnish civil servant and politician
- Heidi Viljanen (born 1980), Finnish politician
- Ilkka Viljanen (born 1960), Finnish politician
- Jalmari Viljanen (1872–1928), Finnish farmer and politician
- Kim Viljanen (born 1981), Finnish darts player
- Lauri Viljanen (1900–1994), Finnish literary critic and writer
- Matti Viljanen (1937–2015), Finnish engineer and politician
- Pekka Viljanen (athlete) (1921–1995), Finnish racewalker
- Pekka Viljanen (politician) (born 1945), Finnish farmer and politician
- Petri Viljanen (born 1987), Finnish footballer
- Valtteri Viljanen (born 1994), Finnish ice hockey player
- Ville Viljanen (born 1971), Finnish footballer
- V.M.J. Viljanen (1874–1946), Finnish engineer, business executive and politician
This page lists people with the surname Viljanen.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.