Hannu-Markus Tapio Norjanen (Mynämäki, 25 February 1964) is a conductor and has worked as the conductor of the Helsinki Cathedral Boy's Choir Cantores Minores since 2005.
In the years 1998-2001 he was the main conductor of the city orchestra of Lappeenranta.
Norjanen graduated from the Sibelius Academy as an organist (1990), choir director (1992), and as a conductor in 1997.
Norjanen has also been taught by Eric Ericson and studied conducting in Sweden.
Hannu Norjanen has also been as a teacher in the Sibelius-Academy, and has also conducted many operas, for example: Mozart's Magic Flute, Donizetti's L'elisir d'amore, Puccini's La Bohème, Tosca, Verdi's La traviata and Falstaff.