The 1st Siberian Rifle His Majesty's Regiment () was an infantry regiment of the Russian Imperial Army, part of the 1st Siberian Rifle Division. Existing from 1883 until 1918, it was part of the Russian force in Manchuria during the Boxer Rebellion, then later fought in the Russo-Japanese War at the battles of Liaoyang and Mukden, before taking part in World War I.