Alf Engen (1909–1997) was a professional skier both in the United States and internationally.

Alf Marinius Engen was born on May 15, 1909 in Oslo, Norway to parents Trond Sorli Engen and Martha Maranda Oen. He came to the United States in 1929 from Norway, and already had a skill in ski jumping. In 1931, he won the World Pro Championship in ski jumping, and in 1937 he won the national championship in the U.S. He married Evelyn Pack on December 23, 1937 in Centerville, Utah. In 1940, he made the Olympic team both in jumping and in the downhill-slalom, but never competed because the games were canceled due to World War II. In 1948, he coached the United States Olympic jumpers, and in that same year, he founded the Alf Engen Ski School in Alta and ran it until he retired in 1989.

He set several ski jump records throughout the course of his life, and won over 500 sports trophies. Alf also helped in the design of several ski resorts, including Sun Valley, Idaho; Alta, Utah; and Jackson Hole, Wyoming. He was elected to the Helms Hall of Fame in 1954 and the United States Skiing Hall of Fame in 1959.

He died on July 21, 1997 in Salt Lake City, Utah.

Alan K. Engen (1940-) was a professional skier from Salt Lake City, Utah.

Alan Karl Engen was born in 1940 to Alf Marinius Engen and Evelyn Pack, skiing legends and pioneers in Utah. He began skiing at age two and was a competitor in the sport at age 9. Having won numerous awards and competed in several events all around the world, Alan was named a Utah Ski Legend in 1988 and inducted into the U.S. National Ski Hall of Fame in 2004.

Additionally, Alan is also credited for spearheading the building of the Alf Engen Ski Museum. Always interested in preserving the history of the sport, Alan has authored two books on the subject and has served as president of the Alta Historical Society, having spent over 50 years working closely with the Alta Ski Area.