Ingrid Berntsen (born 18 April 1978) is a Norwegian freestyle skier who specialized in the moguls. Her career peaked with good performances in the 2002–03 World Cup, but she never succeeded in the Olympic Games, and spent most of her career in the shadow of Kari Traa.
Ingrid Berntsen hails from Filtvet, and is the younger sister of skier Hedda Berntsen. She made her international debut in December 1995, in a European Cup race in Sölden when she finished among the top three before the season was over, with a third place in Altenmarkt-Zauchensee in January 1996.
In February in La Clusaz she made her World Cup debut. She continued racing in both cups, and in March 1997 she finished among the World Cup top fifteen for the first time, with a 14th place at Hundfjället. She then missed the 1997–98 season. She returned in early 1999, and her first placement among the top 10 came in January 1999, with a fourth place in the dual moguls race in Whistler Blackcomb. In the World Championships staged in Meiringen-Hasliberg in March the same year, she finished 20th in moguls and ninth in dual moguls.
In the 1999–00 season, Berntsen finished five times among the top 10; with three ninth places in dual moguls and two 10th places in moguls. In January 2001 she finished with a career best seventh place in the moguls competition in Deer Valley. In the World Championships staged in Whistler later that month, she only finished 21st in moguls and 17th in dual moguls. In January 2002, she again opened her season by recording a career best placement, finishing fourth in the moguls competition in Tignes. In March she finally won her first World Cup event, a dual moguls race in Madarao. Ingrid Berntsen was scheduled to compete in freestyle skiing at the 2002 Winter Olympics, while her sister Hedda was a candidate for the alpine skiing team. By competing in different sports at the same Olympic Games, the sisters were historic in a Norwegian context. Ingrid entered the moguls event, but did not reach the final, finishing 17th. Countryfellow Kari Traa won the race.