Marilyn K. Johnson (1928 – October 31, 2007) was an American bridge player from Houston, Texas. She won three world championships, one at women pairs and two at women teams, all in partnership with Mary Jane Farell. Farell and Johnson also won the North American von Zedtwitz Life Master Pairs in 1978, which no other pair of women has done (1930 to 2014).Johnson majored in chemistry at Wellesley College and worked 33 years for Shell Oil.