Johanna Iivanainen (b. 1976) is a Finnish singer originally from Oulu but currently living in Mäntsälä, Finland.

Johanna started the piano lessons at the age of 5 at the Conservatory of Oulu and after graduating from hig school she started to study music education at the University of Oulu. Finally the passion for jazz music took Iivanainen to study at the Pop & Jazz Conservatory of Oulunkylä and to move to Helsinki in 1996. Later she has also worked as a voice teacher at Metropolia University of Applied Sciences and at Pop & Jazz Conservatory.

Iivanainen's fresh, natural way to perform and the colourful interpretation has made her popular among many different audiences and especially her versatility is amazing. She has recorded for example jazz, a cappella, pop, dance and children's music.

The most active groups and partners for Iivanainen have been Eero Koivistoinen, Antti Sarpila Swing Band, Trio Ahvenlahti-Koivistoinen- Iivanainen, JimJamMurMur, Johanna ja Mikko Iivanainen Duo, 1N and Korpi Ensemble.

In 2002 Iivanainen was awarded with the Louis Armstrong Award and a year later the Sony Electronics Finland and the Finnish Jazz Federation awarded her with the first Sony Jazz Prize in the history. In 2011 the album Kadotaan Uneen was released that had lots of Iivanainen's own compositions. Edu Kettunen worked as the producer of the album and it was released by Texicalli Records. In February 2012 also the collection album of her band, 1N, from the years 1998-2012, was relased.