46th Regiment

• 46th (Liverpool Welsh) Royal Tank Regiment
• 46th (South Devonshire) Regiment of Foot
• 46th Arkansas Infantry (Mounted)
• 46th Brigade
• 46th Division (disambiguation)
• 46th Illinois Volunteer Infantry Regiment
• 46th Indiana Infantry Regiment
• 46th Infantry Brigade (United Kingdom)
• 46th Infantry Regiment (United States)
• 46th Iowa Volunteer Infantry Regiment
• 46th New York Volunteer Infantry
• 46th North Carolina Infantry Regiment
• 46th Ohio Infantry
• 46th Regiment Militia
• 46th Squadron (disambiguation)
• 46th United States Colored Infantry
• 46th Virginia Infantry
• 46th Wisconsin Volunteer Infantry Regiment
• List of Virginia Civil War units