Sigurd Grytten (born 9 September 1972) is a Norwegian lobbyist and member of the Labour Party.
Grytten works with the lobbyist firm Zync. He previously served as a deputy representative to the Norwegian Parliament from Hordaland during the term 1997 - 2001. From 2000 to 2001 he was a regular representative, covering for Olav Akselsen who was appointed to the first cabinet Stoltenberg.From 2001 to 2002 he was the leader of the Norwegian branch of the European Movement.