The following United States Army units and commanders fought in the Battle of Cross Keys of the American Civil War. The Confederate order of battle is listed separately.
Abbreviations used
Military rank
MG = Major General
BG = Brigadier General
Col = Colonel
Ltc = Lieutenant Colonel
Maj = Major
Cpt = Captain
Union Forces Near Cross Keys
MG John C. Frémont
Mountain Department
MG John C. Frémont
Department of the Rappahannock (formerly I Corps, Army of the Potomac) MG Irvin McDowell (not present)
References
June 8, 1862 - Battle of Cross Keys, Va. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies. United States War Department. Volume XII, Chapter XXIV, pp. 664–682. (1885)