Arne Serck-Hanssen grew up in Oslo and competed in ski jumping and cross-country skiing as a youngster. During World War II he joined the Norwegian resistance movement, but was arrested and sent to Sachsenhausen concentration camp in Germany. One year after his release, in 1946, he won his first rowing national championship, and was selected as stroke for the coxed four from Christiania Roklub at the 1948 London Olympics. He later studied medicine at Durham University in England, and stroked his University team to win an English University Championship. After finishing his medical studies, he settled in Oslo as a doctor.