Georg Malmstén (27 June 1902 – 25 May 1981) was a Finnish singer, musician, composer, orchestra conductor and actor.

In late 1930s, owning a record company, he made about half of his releases under the pseudonym Matti Reima.

[1] He was the oldest of three children of a Swedish-speaking family, with Russian ancestry through his mother, Eugenie Petroff, and brother of singer and bandleader Eugen Malmstén.

In 1950's Disney sued him over the similarity of the main character's name to the Finnish translation of Mickey Mouse, "Mikki Hiiri".

However, Disney abandoned the case after Malmstén explained that the characters shared nothing in common but a name, which was also written differently.