Loren C. Murchison (December 17, 1898 – June 11, 1979) was an American athlete, double gold medal winner in 4×100 m relay at the Olympic Games.
Born in Farmersville, Texas, Loren Murchison was an AAU Champion in 100 yd (91 m) in 1920 and 1923 and in 220 yd (200 m) in 1918 and 1923. He also won the British AAA championships in both 100 yd (91 m) and 220 yd (200 m) in 1925.
At the 1920 Summer Olympics, Murchison finished fourth in 200 m and sixth in 100 m. He also ran the third leg in the gold medal winning United States 4x100 m relay team, which set a new world record of 42.2 s in the Olympic final.
At the 1924 Summer Olympics, Murchison was again sixth in 100 m and won his second Olympic gold medal as an opening leg in the world record (41.0 s) setting American 4×100 m relay team.
Murchison was an outstanding indoor runner. He won 14 titles (9 individual and 5 in the relay) at the United States premier indoor athletics meet, the Millrose Games. He was also national indoor champion at the 60 y in 1919–20 and 1922–24, and 300 y in 1919–20 and 1923–24.
Murchison was also a prolific breaker of records indoors. Amongst the world best times he equaled or broke are:
equaled 60 y best of 6.4 s in 1920, 1922 and 1923;