Casey James Knudsen (born November 9, 1990) is an American politician who has served in the Montana House of Representatives from the 33rd district since 2017.
Knudsen is from Malta, Montana and graduated from Malta High School in 2009. He earned a bachelor's degree in mechanical engineering technology with a minor in aerospace engineering from Montana State University in 2014. After earning his degree, Knudsen returned to Malta to work on his family ranch. He owns an engineering design company.