The Mercury Park Lane is a full-sized automobile that was produced by the Mercury division of Ford Motor Company. While not officially introduced as the replacement of the Mercury Turnpike Cruiser, the Park Lane became the flagship of the Mercury model line upon its introduction. The second-generation Park Lane was positioned above the Mercury Montclair.

Mercury was a brand of mid-priced automobiles produced by American manufacturer Ford Motor Company between 1938 and 2011 with 1939 being the first model year. It stood as its own line within Ford until 1945, and thereafter formed half of Ford's Lincoln-Mercury Division. Created by Edsel Ford in 1938 to bridge the gap between the Ford and Lincoln model lines, its principal competition was General Motors' Buick and Oldsmobile divisions, and Chrysler Corporation's DeSoto and Chrysler brands.