61st Cavalry may refer to:
Divisions 61st Cavalry Division (United States) 61st Cavalry Division (Soviet Union)
Regiments 61st Cavalry (India) 61st Cavalry Regiment (United States)
Companies 61st (South Irish Horse (Dublin)) Company, Imperial Yeomanry
See also 61st Division (disambiguation) 61st Brigade (disambiguation) 61st Regiment (disambiguation) 61st (disambiguation)