Tormod Andreassen (born 29 March 1951) is a Norwegian curler and curling coach.
Andreassen has skipped Norway at 3 World Championships (1986, 1993 and 1994), finishing sixth place each time. He skipped Norway the 1992 Winter Olympics when curling was a demonstration sport. Norway won the silver medal, losing to Switzerland (skipped by Urs Dick) in the final.
Andreassen has also played in four European Curling Championships (, , , ), winning the bronze in 1986 and 1998.
In , , and , Andreassens skipped the national seniors team at the World Senior Curling Championships.
Andreassen represented Norway at the inaugural 2008 World Mixed Doubles Curling Championship, partnered with his daughter Linn Githmark.