U.S. Army Museum of Hawaii, Military heritage museum in Waikiki, United States.

The U.S. Army Museum of Hawaii is a military museum in Waikiki that documents the Army's role in the Pacific region. Its collection includes weapons, uniforms, photographs, and documents from various military campaigns and periods.

Battery Randolph, a former coastal artillery battery at Fort DeRussy, was converted into the U.S. Army Museum of Hawaii in 1976. The Hawai'i Army Museum Society was chartered the same year to support the museum. Its 14-inch main guns were scrapped after World War II and replaced with two 7-inch naval guns from the battleship USS New Hampshire.

The museum honors service members from Hawaii who received military decorations and commendations. Visitors can learn about their achievements through photographs and personal items on display.

The museum occupies Battery Randolph at 2131 Kalia Road, next to the Hale Koa Hotel, with parking across the street. It is open 10 am to 5 pm, Tuesday through Saturday, but closes on Tuesdays that follow a federal holiday. Admission is free.

The 14-inch main guns of Battery Randolph were scrapped after World War II; the two 7-inch naval guns now at the museum were previously mounted on the battleship USS New Hampshire. The collection also holds a US M24 Chaffee and a Japanese Type 95 Ha-Go light tank, plus an AH-1 Cobra helicopter.