L. Brooks Leavitt (1878–1941) was an investment banker and antiquarian book collector who served as an overseer of Bowdoin College, to whose library he donated part of his collection of rare books and manuscripts. Born in Wilton, Maine, to a father who was a stagecoach driver who died when Leavitt was young, Brooks Leavitt was an aesthete turned banker whom Maine's poet laureate later eulogized at his funeral.