| Club: | Rapid Wien |
| Season: | 1920–21 |
| Manager: | Dionys Schönecker |
| Mgrtitle: | Coach |
| Stadium: | Pfarrwiese, Vienna, Austria |
| League: | First class |
| League Result: | Champions (7th title) |
| Cup1: | Austrian Cup |
| Cup1 Result: | 1st round |
| League Topscorer: | Josef Uridil (35) |
| Season Topscorer: | Josef Uridil (35) |
| Highest Attendance: | 15,000 |
| Lowest Attendance: | 700 |
| Average Attendance: | 7,100 |
| Prevseason: | 1919–20 |
| Nextseason: | 1921–22 |
The 1920–21 SK Rapid Wien season was the 23rd season in club history.
| Nat. | Name | League | Cup | Total | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Apps | Goals | Apps | Goals | Apps | Goals | |||||||||
| Goalkeepers | ||||||||||||||
 | 1 | 1 | ||||||||||||
| 21 | 1 | 22 | |||||||||||
| 3 | 3 | ||||||||||||
| Defenders | ||||||||||||||
| 21 | 2 | 23 | |||||||||||
| 1 | 1 | ||||||||||||
| 2 | 2 | ||||||||||||
| 5 | 5 | ||||||||||||
| 4 | 4 | ||||||||||||
| 3 | 1 | 4 | |||||||||||
| 1 | 1 | ||||||||||||
| Midfielders | ||||||||||||||
| 5 | 5 | ||||||||||||
| 24 | 2 | 26 | |||||||||||
| 1 | 1 | ||||||||||||
| 20 | 2 | 22 | |||||||||||
| 23 | 2 | 25 | |||||||||||
| Forwards | ||||||||||||||
| 21 | 13 | 1 | 1 | 22 | 14 | ||||||||
| 11 | 1 | 12 | |||||||||||
| 10 | 2 | 10 | 2 | ||||||||||
| 24 | 19 | 2 | 2 | 26 | 21 | ||||||||
| 22 | 35 | 2 | 24 | 35 | |||||||||
| 7 | 1 | 1 | 8 | 1 | |||||||||
| 5 | 4 | 5 | 4 | ||||||||||
| 7 | 3 | 2 | 1 | 9 | 4 | ||||||||
| 23 | 8 | 2 | 25 | 8 | |||||||||
| Date | Venue | Opponent | |||||
|---|---|---|---|---|---|---|---|
| 05.09.1920 | A | 2-2 | |||||
| 12.09.1920 | A | 3-3 | 5,000 | ||||
| 19.09.1920 | A | 3-4 | 9,000 | ||||
| 03.10.1920 | 2-1 | ||||||
| 10.10.1920 | 6-0 | 6,000 | |||||
| 24.10.1920 | 1-0 | 10,000 | |||||
| 14.11.1920 | 1-1 | 20,000 | |||||
| 21.11.1920 | 4-2 | 3,000 | |||||
| 28.11.1920 | 4-1 | 2,000 | |||||
| 05.12.1920 | 8-2 | 2,000 | |||||
| 12.12.1920 | 4-2 | 700 | |||||
| 02.01.1921 | A | 9-0 | 18,000 | ||||
| 14.05.1921 | 2-2 | 15,000 | |||||
| 20.02.1921 | 1-0 | 12,000 | |||||
| 06.03.1921 | A | 3-1 | 3,500 | ||||
| 13.03.1921 | 3-3 | 15,000 | |||||
| 03.04.1921 | 5-3 | 10,000 | |||||
| 10.04.1921 | 7-5 | 4,000 | |||||
| 29.06.1921 | 1-1 | 25,000 | |||||
| 15.06.1921 | 4-0 | 5,000 | |||||
| 26.06.1921 | 4-1 | 8,000 | |||||
| 22.05.1921 | 3-2 | 10,000 | |||||
| 29.05.1921 | 3-2 | 10,000 | |||||
| 20.03.1921 | A | 3-1 | 5,000 |
| Date | Venue | Opponent | |||||
|---|---|---|---|---|---|---|---|
| 27.02.1921 | 3-3 (a.e.t.) | 15,000 | |||||
| 08.03.1921 | 1-2 | 12,000 |