She has also made three A-international appearances for Norway.
Linköping describes Ellingsen as a player who is "safe with the ball, a good passing player" and that she "complements the rest of the squad both with her game and her ambitions".
"I am very happy to have signed for LFC in the coming years.
The club's ambitions suit me and my development, it is the right step to take now, and I will do everything to win ", says Heidi Ellingsen in a press release.
The contract is written over two years.