USS Hornet Museum, Military museum in Alameda, United States.

The USS Hornet Museum occupies an actual aircraft carrier vessel that displays naval equipment, military aircraft, and space exploration artifacts across multiple decks. The carrier itself serves as the exhibition space, with visitors able to explore the bridge, engine rooms, and hangars throughout the ship.

Launched in 1943, the USS Hornet served in the Pacific, including the Liberation of the Philippines. Decommissioned in 1970, it was registered as a historic landmark in the 1990s and opened as a museum on October 17, 1998, with Apollo 11 astronaut Buzz Aldrin as principal speaker. In 1969 it was the prime recovery ship for Apollo 11, and four months later recovered the Apollo 12 crew.

The museum's name links it to an earlier Hornet, the Yorktown-class carrier lost in 1942; the present ship is the fourth to bear the name. Since 2023 the flight deck has hosted CarrierCon, a fan convention for anime, comics and cosplay, run in collaboration with the mobile game Azur Lane, whose shipgirl characters include a Hornet. The 1995 film Apollo 13 used the ship's SH-3H Sea King helicopter, now on display.

Self-guided tours cover the flight deck, hangar deck and the first deck below; docent-led tours add the island's navigation and flight deck control areas and an engineering space with two of the four propulsion turbines. Access between decks is by steep ladders, so wear sturdy shoes and allow several hours. The ship lies at the southernmost pier of the former Naval Air Station Alameda.

The museum holds the largest Apollo program exhibit on the West Coast, including the command module CSM-011 flown on the uncrewed AS-202 suborbital test and the Mobile Quarantine Facility used by the Apollo 14 crew after splashdown. A SH-3H Sea King helicopter displayed here appeared in the 1995 film Apollo 13.