Ida Marcussen (born 1 November 1987 in Kristiansand) is a Norwegian heptathlete.

She represents IK Våg, having changed clubs from Kristiansands IF in 2006.

In 2008 she opened the season by setting a Norwegian indoor record in the pentathlon, with 4214 points.

She competed at the international combined event meets in Götzis and Ratingen, setting new personal bests in the shot put, javelin and 800 metres.

She started well, managing new personal best marks in the first two events, the 100 metres hurdles and the high jump.