3rd Cavalry Regiment (United States)

The 3rd Cavalry Regiment, formerly 3d Armored Cavalry Regiment ("Brave Rifles") is a regiment of the United States Army currently stationed at Fort Hood, Texas.

The regiment has a history in the United States Army that dates back to 19 May 1846, when it was constituted in the Regular Army as the Regiment of Mounted Riflemen at Jefferson Barracks, Missouri. This unit was reorganized at the start of the American Civil War as the 3d U.S. Cavalry Regiment on 3 August 1861. In January 1943, the regiment was re-designated as the 3d Cavalry Group (Mechanized). Today, they are equipped with Stryker vehicles. The 3d Armored Cavalry Regiment was the last heavy armored Cavalry Regiment in the U.S. Army until it officially became a Stryker regiment on 16 November 2011. It retains its lineage as the 3d Cavalry Regiment.

Under various names it has seen action during eleven major conflicts: the Indian Wars, the Mexican–American War, the American Civil War, the Spanish–American War, the Philippine–American War, World War I, World War II, the Persian Gulf War, SFOR in Bosnia, Operation Iraqi Freedom, Operation New Dawn, Operation Enduring Freedom, Operation Freedoms Sentinel, and most recently Operation Inherent Resolve.

Twenty-three of the regiment's troopers received the Medal of Honor, all awarded for gallantry in action between 1871 and 1898. The list includes William "Buffalo Bill" Cody, whose award was rescinded in 1916 for not being a member of the military. Cody's medal was reinstated in 1989.

Most of the regiment was deployed to Afghanistan from 2016 - February 2017.

3d Cavalry Regiment is subordinate to the III Armored Corps as of October 2022 and was previously directly assigned to the 1st Cavalry Division from March 2017 to October 2022.