Henriette Westhrin (born 23 March 1973 in Kragerø) is a Norwegian politician for the Socialist Left Party. She served in the position of deputy representative to the Norwegian Parliament from Telemark during the terms 1993–1997 and 2001–2005. When the Socialist Left Party entered the Cabinet in 2005, Westhrin was appointed State Secretary in the Ministry of the Environment. After the Cabinet reshuffle in October 2007, Westhrin became State Secretary in the Ministry of Finance.