Benjamin Franklin "Frank" Newcomer (April 28, 1827 – March 30, 1901) was an American railroad executive and bank president from Baltimore, Maryland.

[1][2] In 1853, Newcomer helped organize the first Corn and Flour Exchange in Baltimore and served as one of its first directors.

He was an incorporator of the Safe Deposit & Trust Company of Baltimore and served as its president for 33 years, starting in July 1868.

[2] In 1861, Newcomer was elected as director of the Northern Central Railway and was made a chairman of the finance committee.

In 1895, after the death of Oden Bowie, he served as president of the Baltimore and Potomac Railroad.

They formed the Southern Railway Security Company and completed the Wilmington, Columbia and Augusta Railroad.

Newcomer served as president of the Wilmington and Weldon Railroad from December 1, 1888, to February 12, 1890.

He served as treasurer, vice president and director of the Atlantic Coast Line Railroad.

[1] Newcomer's 1900 donation funded the Washington Free Library in Hagerstown, though the construction was complete until after his death.

He served as a member of the board of trustees of Johns Hopkins University due to his friendship with Daniel Coit Gilman.

[1] Newcomer was friends with Pennsylvania Railroad presidents Thomas A. Scott, George Brooke Roberts, John Edgar Thomson and Alexander Cassatt.