The following is a list of Polish Armies during World War II, together with their commanders and brigade and division-sized units. For a more detailed list see: Polish army order of battle in 1939.
{| border=1 width=250 cellpadding=2 cellspacing=0 align=right
|+Key
|-
!Formed before the war
|align=center bgcolor=#bbbbdd|Blue
|-
!Formed during the war in Poland
|align=center bgcolor=#bbddbb|Green
|-
!Formed in exile at later stages of the war
|align=center bgcolor=#ddbbbb|Red
|}
thumb|right|250px|Placement of divisions on September 1, 1939
{| border=0 cellpadding=2
|-
|width=10 bgcolor=#bbbbdd| ||Karpaty Army (Armia Karpaty)<br><small>Kazimierz Fabrycy<br>2nd and 3rd Mountain Bdes, 11th Inf.Div, 24th Inf.Div, 38th Inf.Div</small>
|-
|bgcolor=#bbbbdd| ||Kraków Army (Armia Kraków)<br><small>Antoni Szylling<br>6th, 7th, 21st Mountain, 22nd Mountain, 23rd, 55th Infantry Divisions, 10th Mot., Kraków Cav.Bde., 1st Mountain</small>
|-
|bgcolor=#bbbbdd| ||Łódź Army (Armia Łódź)<br><small>Juliusz Rómmel, Wiktor Thommée<br>2nd Legions, 10th, 28th, 30th Infantry Divisions, Wołyńska and Kresowa Cavalry Brigades</small>
|-
|bgcolor=#bbbbdd| ||Modlin Army (Armia Modlin)<br><small>Emil Krukowicz-Przedrzymirski<br>8th and 20th Infantry Divisions, Mazowiecka and Nowogródzka Cavalry Brigades, Warsaw BON</small>
|-
|bgcolor=#bbbbdd| ||Pomorze Army (Armia Pomorze)<br><small>Władysław Bortnowski<br>4th, 9th, 15th, 16th and 27th Infantry Divisions, Pomorska Cavalry Brigade, Pomorze and Chełm National Defence Bdes, Wisła Independent Unit</small>
|-
|bgcolor=#bbbbdd| ||Poznań Army (Armia Poznań)<br><small>Tadeusz Kutrzeba<br>14th, 17th, 25th and 26th Inf.Div., Podolska and Wielkopolska Cav.Bdes, Poznań and Kalisz National Defence Bdes</small>
|-
|bgcolor=#bbbbdd| ||Prusy Army (Armia Prusy)<br><small>Stefan Dąb-Biernacki<br>3rd Legions, 12th, 13th, 19th, 29th and 36th Inf.Div, Wileńska Cavalry Brigade</small>
|-
|bgcolor=#bbddbb| ||Lublin Army (Armia Lublin)<br><small>Tadeusz Piskor<br>39th Inf.Div., Motorised Bde, Sandomierz Group, Komorowski's Cavalry Group</small>
|-
|bgcolor=#bbddbb| ||Małopolska Army (Armia Małopolska)<br><small>Kazimierz Fabrycy<br>See:Karpaty Army above</small>
|-
|bgcolor=#bbddbb| ||Warszawa Army (Armia Warszawa)<br><small>Juliusz Rómmel, Walerian Czuma, Wiktor Thommée<br></small>
|-
|bgcolor=#ddbbbb| ||Polish Army in France (Wojsko Polskie we Francji)<br><small>Władysław Sikorski<br>1st Grenadier, 2nd Rifle, 10th Armoured Brigade Bde</small>
|-
|bgcolor=#ddbbbb| ||I Corps (I Korpus Polski)<br><small>Stanisław Maczek<br>1st Armoured Division, 1st Para Brigade</small>
|-
|bgcolor=#ddbbbb| ||II Corps (II Korpus Polski)<br><small>Władysław Anders<br>3rd and 5th Infantry Divisions, 2nd Armoured Division</small>
|-
|bgcolor=#ddbbbb| ||First Army (1 Armia Wojska Polskiego)<br><small>Zygmunt Berling<br> 1st, 2nd, 3rd, 4th and 6th Infantry Divisions, Armoured Bde, Cavalry Bde</small>
|-
|bgcolor=#ddbbbb| ||Second Army (2 Armia Wojska Polskiego)<br><small>Karol Świerczewski<br>5th, 7th, 8th, 9th, 10th Inf. Divs, 16th Armoured Bde</small>
|}
During the Invasion of Poland several divisions were grouped into two units smaller than armies: the Wyszków Operational Group and the Narew Independent Operational Group.
See also
- Air Force of the Polish Army (in the East)
- Polish Air Forces in France and Great Britain
- Polish Navy in World War II
- List of Polish divisions in World War II
- Polish army order of battle in 1939
- Polish contribution to World War II
