Christin Kristoffersen (born August 28, 1973) is a Norwegian politician for the Labour Party. She was the mayor of Longyearbyen from 2011 to 2015. Kristoffersen moved to Longyearbyen from Tromsø in January 2009, along with her family of husband and two children, to work at the University Centre in Svalbard. By 2011, she was a board member of the school board, the board of city operations and the port authority. Ahead of the 2011 election, in May 2011, she beat Anita Johansen with 15 against 5 votes to become the Labour Party's mayor candidate. Her party won 43 percent of the votes and she was subsequently elected mayor, replacing . She sits in the municipal council along with her son, Viljar Hanssen, also for the Labour Party.