Gun Iris Marianne Mörck, (born 2 September 1949) is a Swedish actress, opera singer and director.

Marianne Mörck is studied acting at stage school in Gothenburg, and during that time she got involved in choir work for Stora teatern.

[2] She had the titular role as in "Carmen", Eliza in "My Fair Lady", Maja Grädnos in "Pelle Svanslös", Sally Bowles in #Cabaret", Madame Thénardier in "Les Misérables", Giovanna in "Rigoletto" and Marta in "Sound of Music".

[2] At the Fredriksdalteatern in Helsingborg Mörck have acted in three theater productions, in 2002 as Agda Lindhagen in "Hon jazzade en sommar" , in 2008 as Falkenvråk in "Rabalder in Ramlösa", and in 2012 as one of the Brewster sisters in Arsenik och gamla spetsar.

She has also directed operas like Lucia di Lammermoor, Aida, Eugen Onegin, Don Giovanni, Alceste and Cavalleria Rusticana.