English: Looking southwest at the cannon of the Spanish-American War Memorial at Arlington National Cemetery in Arlington, Virginia, in the United States. The memorial is located in the easternmost portion of Section 22.

The National Society of Colonial Dames asked for permission to erect a memorial in the cemetery to the war's dead in March 1901. Quartermaster General Marshall I. Ludington made some changes to the design, which was approved on October 23, 1901. The monument was dedicated by President Theodore Roosevelt on May 21, 1902. It was the first monument ever erected at the cemetery by a society of women.

The monument consists of a column on a base, situated in a small plaza. The granite column from Barre, Vermont, is 50 feet high, Corinthian in style, and surmounted by a sphere of granite from Quincy, Massachusetts. The dark grey granite is highly polished, and with a band of rough granite lined with stars about the circumference. The sphere is tilted at a 15 degree angle, and a bronze eagle -- facing west, wings spread -- is mounted on the top of the sphere. The light grey square granite base as a highly polished black granite sphere 18 inches in diameter at each corner. Along the upper eage of the base are bronze stars, 5 inches wide. There are 11 stars on each side of the base (representing the 44 U.S. states at the time of the war). Bronze plaques commemorating the war dead adorn the front (west) and rear (east) of the base.

The monument sits in a circular grassy space. Lawton Avenue circles the space. At the rear of the monument, across the roadway, are four cannon mounted on brick and concrete stands. The guns face northeast, east, southeast, and south. The two outer guns are captured Spanish bronze field artillery. The and are made of bronze. The two inner guns are made of steel, and came from Spanish ships captured in the war. They are 28 cm (11 in) Hontoria guns salvaged from the Spanish cruisers Infanta Maria Teresa and Vizcaya.

A bronze plaque on a granite marker was added to the front of the memorial plaza on October 11, 1964.