1920–21 Ljubljana Subassociation League

The 1920–21 Ljubljana Subassociation League was the second season of the Ljubljana Subassociation League. The league was separated into Celje, Ljubljana and Maribor subdivisions.^[1] The final was played between the previous season winners Ilirija from Ljubljana, and Athletik from Celje. Ilirija defeated Athletik in the final and won their second title in a row.^[1]

Celje subdivision

Pos	Team	Pld	W	D	L	Pts
1	Athletik	2	2	0	0	4
2	Celje	2	0	0	2	0

Source: ^{[citation needed]}

Pos	Team	Pld	W	D	L	Pts
1	Ilirija	2	2	0	0	4
2	Svoboda	2	0	0	2	0

Source: ^{[citation needed]}

Team 1	Score	Team 2
I. SSK Maribor	1–2	Athletik

Team 1	Score	Team 2
Athletik	5–5	Ilirija
Ilirija	7–2	Athletik

^ ^a ^b "MNZ Maribor – 80 let nogometa v Mariboru" (PDF). MNZ Maribor. 2008. Retrieved 15 August 2013.