Emil Wilhelm Wahlforss (25. june 1891, Helsinki – 20. june 1969, Nagu Högsar) was a notable Finnish industrialist. He studied at the Helsinki University of Technology graduating in 1916 with a master's degree. He travelled to the United States in 1919 and to the United Kingdom in 1926 to learn more about industry and business opportunities.
Wahlforss was active in a number of businesses in Finland but is best known for his role as the builder of the Wärtsilä corporation. Wahlforss held in his later life the honorary title of Vuorineuvos.
Wahlforss was popularly called Vikkelä Ville. Vikkelä being Finnish for quick, and Ville being a short form of his preferred first name Wilhelm.
Wahlforss is one of the 7 honorary members of Teknologföreningen student corporation at the Aalto University.