Boston Public Garden Flagpole Base is a 1921 flagpole base, memorial, and sculpture by William D. Austen, installed in Boston Public Garden, in Boston, Massachusetts, United States.

It has four facades with reliefs depicting American eagles holding branches and spreading their wings, and serves as a World War I memorial.

It was originally installed at the site of the original base, at the intersection of Boylston Street and Arlington Street, but was moved to its present location in 1933.

The work was surveyed by the Smithsonian Institution's "Save Outdoor Sculpture!"

[1] This article about a sculpture in Massachusetts is a stub.