AM4 or AM-4 may refer to: Socket AM4, a socket for AMD processors utilizing the Zen microarchitecture Amusement Vision, video game developer formerly known as Sega-AM4 USS Swallow (AM-4), a U.S. Navy minesweeper Ekspress-AM4, a Russian satellite that never reached its intended orbit Another name for AAA battery Another name for the synthetic cannabinoid AM-2201 British Rail Class 304 train, originally known as class AM4