Marion Elizabeth Webster-Bukovsky (née Webster; April 9, 1921 − July 6, 1985) was a Canadian-American biochemist who was the first to isolate the Vi antigen of typhoid and to determine its structure.

She published extensively on the kinin–kallikrein system while at the National Heart, Lung, and Blood Institute.

She then joined the Walter Reed Army Institute of Research, and earned a Ph.D. at Georgetown University.

Joining NIH’s National Heart, Lung, and Blood Institute (NHLBI) in 1958, Webster published extensively on the kinin–kallikrein system.

She was a member of the First United Methodist Church and Virginia Heights Association in Winter Park.