Dark Horse Tour, 2008–2010 world tour by Nickelback Other uses Operation Darkhorse offensive against the Bangsamoro Islamic Freedom Fighters (BIFF) Darkhorse Theater Nashville, Tennessee Darkhorse (band) Dark Horse (astronomy), a large dark nebula Dark Horse Brewery, a brewpub in Marshall, Michigan, U.S. 3rd Battalion, 5th Marines, nicknamed "Dark Horse", an infantry battalion in the U.S. Marine Corps Dark Horse, a hybrid 3D computer proposed by Los Alamos National Laboratory prior to the IBM Roadrunner DarkHorse Podcast, a podcast presented by Bret Weinstein and Heather Heying See also Dark Horses (disambiguation)