| Season | Title |
| 2019/20 | - |
| 2020/21 | - |
| 2021/22 | Grand Final winner |
| 2022/23 | - |
| 2023/24 | - |
| Biggest winning margin | 6 goals | 16/04/2022 Western United FC 6-0 Perth Glory |
| Biggest losing margin | 5 goals | 8/05/2021 Western Sydney Wanderers 5-0 Western United FC |
| 28/05/2021 Western United FC 1-6 Melbourne Victory | ||
| 28/10/2023 Western Sydney Wanderers 5-0 Western United FC | ||
| Most goals scored in a match | 6 goals | 1/03/2020 Western United FC 6-2 Central Coast Mariners |
| 16/04/2022 Western United FC 6-0 Perth Glory | ||
| Most goals conceded in a match | 6 goals | 28/05/2021 Western United FC 1-6 Melbourne Victory |
| Record clean sheet streak | 2 matches (Click here for details) | |
| Record scoreless streak | 4 matches (Click here for details) | |
| Record winning streak | 4 matches (Click here for details) | |
| Record non-losing streak | 9 matches (Click here for details) | |
| Record non-winning streak | 9 matches (Click here for details) | Have not won in their last 2 matches. |
| Record losing streak | 8 matches (Click here for details) | Have lost their last 2 matches. |
| Best final ladder position | 3rd out of 12 | Season 2021/22 |
| Worst final ladder position | 10th out of 12 | Season 2020/21 |
| Best FFA cup performance | Eliminated in the quarter finals | Season 2023/24 17/09/2023 Sydney FC 3-0 Western United FC (Cup) |
| Worst FFA cup performance | Eliminated in the first round | Season 2021/22 7/12/2021 Western United FC 0-1 Wellington Phoenix (Cup) |
| Largest crowd ever played in front of | 24105 | 22/05/2021 Wellington Phoenix 3-0 Western United FC |
| Most consecutive appearances | 68 matches (Click here for details) | Lachlan Wales |
| Most consecutive goalscoring appearances | 4 matches (Click here for details) | Besart Berisha |
| Youngest ever player | Luke Duzel 18 years 25 days | 1/03/2020 Western United FC 6-2 Central Coast Mariners |
| Youngest ever goal scorer | Matthew Grimaldi 19 years 275 days | 1 goal - 30/08/2023 Gold Coast Knights (QLD) 0-2 Western United FC (Cup) |
| Oldest ever player | Alessandro Diamanti 39 years 362 days | 29/04/2023 Perth Glory 1-2 Western United FC |
| Oldest ever goal scorer | Alessandro Diamanti 39 years 264 days | 1 goal - 21/01/2023 Western United FC 1-0 Sydney FC |
| Opponent | Head to Head link | Competitions | P | W | D | L | F | A | Diff | Pts |
| Adelaide United | Click here | A-League | 10 | 3 | 2 | 5 | 16 | 17 | -1 | 11 |
| Brisbane Roar | Click here | A-League, Finals | 10 | 6 | 1 | 3 | 12 | 8 | 4 | 19 |
| Central Coast Mariners | Click here | A-League | 11 | 3 | 1 | 7 | 16 | 22 | -6 | 10 |
| Edgeworth FC (NSW) | Cup | 1 | 1 | 0 | 0 | 4 | 0 | 4 | 3 | |
| Gold Coast Knights (QLD) | Cup | 1 | 1 | 0 | 0 | 2 | 0 | 2 | 3 | |
| Macarthur FC | Click here | A-League | 8 | 2 | 3 | 3 | 13 | 11 | 2 | 9 |
| Melbourne City FC | Click here | A-League, Finals, Grand Final | 14 | 5 | 1 | 8 | 17 | 25 | -8 | 16 |
| Melbourne Victory | Click here | A-League, Finals, Cup | 14 | 8 | 2 | 4 | 24 | 22 | 2 | 26 |
| Newcastle Jets | Click here | A-League, Cup | 12 | 5 | 3 | 4 | 12 | 10 | 2 | 18 |
| Perth Glory | Click here | A-League | 10 | 7 | 1 | 2 | 22 | 12 | 10 | 22 |
| Sydney FC | Click here | A-League, Cup | 12 | 3 | 2 | 7 | 11 | 23 | -12 | 11 |
| Sydney United 58 (NSW) | Cup | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | |
| Wellington Phoenix | Click here | A-League, Finals, Cup | 13 | 3 | 1 | 9 | 11 | 25 | -14 | 10 |
| Western Sydney Wanderers | Click here | A-League | 10 | 5 | 1 | 4 | 13 | 19 | -6 | 16 |
| Competition | P | W | D | L | F | A | Diff | Pts |
| League | 114 | 44 | 18 | 52 | 155 | 184 | -29 | 150 |
| A-League Finals | 5 | 3 | 0 | 2 | 6 | 4 | 2 | 9 |
| A-League Grand Final | 1 | 1 | 0 | 0 | 2 | 0 | 2 | 3 |
| Preseason Cup | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| FFA Cup | 7 | 4 | 0 | 3 | 11 | 7 | 4 | 12 |
| Preseason Cup Final | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| ACL Qualification | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Asian Champions League | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Asian Champions League Final | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| AFC Cup | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Oceania Champions League | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Oceania Champions League Qualification | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Club World Cup | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| # | Crowd | Date | Season | Match | Match Type |
| 1. | 10,128 | 8/12/2019 | 2019/20 | Western United FC 3-1 Melbourne Victory | League |
| 2. | 8,127 | 12/03/2022 | 2021/22 | Western United FC 2-2 Melbourne City FC | League |
| 3. | 8,120 | 20/11/2021 | 2021/22 | Western United FC 0-1 Melbourne Victory | League |
| 4. | 7,295 | 17/05/2022 | 2021/22 | Western United FC 0-1 Melbourne Victory | A-League Finals |
| 5. | 7,042 | 27/10/2019 | 2019/20 | Western United FC 1-2 Melbourne City FC | League |
| 6. | 7,016 | 30/01/2021 | 2020/21 | Western United FC 0-0 Melbourne Victory | League |
| 7. | 6,104 | 1/04/2021 | 2020/21 | Western United FC 2-1 Melbourne City FC | League |
| 8. | 6,088 | 19/10/2019 | 2019/20 | Western United FC 1-1 Perth Glory | League |
| 9. | 6,020 | 19/01/2020 | 2019/20 | Western United FC 3-0 Central Coast Mariners | League |
| 10. | 5,988 | 26/01/2020 | 2019/20 | Western United FC 3-4 Adelaide United | League |
| # | Crowd | Date | Season | Match | Match Type |
| 1. | 990 | 26/04/2021 | 2020/21 | Western United FC 2-0 Newcastle Jets | League |
| 2. | 1,127 | 13/11/2021 | 2021/22 | Western United FC 2-1 Newcastle Jets | FFA Cup |
| 3. | 1,217 | 7/12/2021 | 2021/22 | Western United FC 0-1 Wellington Phoenix | FFA Cup |
| 4. | 1,423 | 2/04/2022 | 2021/22 | Western United FC 2-2 Central Coast Mariners | League |
| 5. | 1,423 | 9/04/2022 | 2021/22 | Western United FC 1-4 Wellington Phoenix | League |
| 6. | 1,505 | 20/02/2021 | 2020/21 | Western United FC 4-1 Macarthur FC | League |
| 7. | 1,569 | 19/04/2022 | 2021/22 | Western United FC 2-0 Macarthur FC | League |
| 8. | 1,850 | 23/02/2022 | 2021/22 | Western United FC 1-0 Sydney FC | League |
| 9. | 1,920 | 14/03/2021 | 2020/21 | Western United FC 1-0 Brisbane Roar | League |
| 10. | 2,020 | 15/05/2021 | 2020/21 | Western United FC 0-1 Sydney FC | League |
| Season | 2005/06 | 2006/07 | 2007/08 | 2008/09 | 2009/10 |
| Western United FC average home crowd | 0 | 0 | 0 | 0 | 0 |
| League average | 11627 | 14036 | 15348 | 12966 | 10447 |
| Season | 2010/11 | 2011/12 | 2012/13 | 2013/14 | 2014/15 |
| Western United FC average home crowd | 0 | 0 | 0 | 0 | 0 |
| League average | 8749 | 10807 | 12658 | 13488 | 13038 |
| Season | 2015/16 | 2016/17 | 2017/18 | 2018/19 | 2019/20 |
| Western United FC average home crowd | 0 | 0 | 0 | 0 | 5583 |
| League average | 12700 | 12683 | 10915 | 10920 | 8696 |
| Season | 2020/21 | 2021/22 | 2022/23 | 2023/24 | 2024/25 |
| Western United FC average home crowd | 3289 | 3615 | 3168 | 2448 | |
| League average | 5730 | 5610 | 7913 | 8310 | |
| Coach | First match | Last match | Matches | W | D | L | Pts | PPG |
| Mark Rudan | 13/10/2019 Wellington Phoenix 0-1 Western United FC | 5/06/2021 Central Coast Mariners 2-0 Western United FC | 54 | 21 | 7 | 26 | 70 | 1.2963 |
| John Aloisi | 13/11/2021 Western United FC 2-1 Newcastle Jets | Incumbent | 73 | 31 | 11 | 31 | 104 | 1.4247 |
| # | Player | Appearances |
| 1. | Connor Pain | 108 |
| 2. | Tomoki Imai | 100 |
| 3. | Dylan Pierias | 98 |
| 4. | Lachlan Wales | 96 |
| 5. | Joshua Risdon | 84 |
| 6. | Alessandro Diamanti | 83 |
| 7. | Steven Lustica | 82 |
| 8. | Ben Garuccio | 62 |
| 9. | Jamie Young | 59 |
| 10. | Léo Lacroix | 52 |
| 11. | Besart Berisha | 50 |
| 12. | Neil Kilkenny | 48 |
| 13. | Andrew Durante | 45 |
| Jerry Skotadis | 45 | |
| 15. | Aleksandar Prijovic | 44 |
| 16. | Nicolas Milanovic | 39 |
| 17. | Noah Botic | 38 |
| 18. | Nikolai Topor-Stanley | 37 |
| Dylan Wenzel-Halls | 37 | |
| 20. | Filip Kurto | 36 |
| # | Player | Goals |
| 1. | Besart Berisha | 26 |
| 2. | Aleksandar Prijovic | 19 |
| 3. | Lachlan Wales | 18 |
| 4. | Alessandro Diamanti | 11 |
| 5. | Dylan Pierias | 10 |
| Connor Pain | 10 | |
| 7. | Noah Botic | 8 |
| 8. | Steven Lustica | 7 |
| 9. | Max Burgess | 6 |
| 10. | Nicolas Milanovic | 5 |
| Dylan Wenzel-Halls | 5 | |
| 12. | Joshua Risdon | 4 |
| 13. | Ben Garuccio | 3 |
| Victor Sanchez | 3 | |
| Iker Guarrotxena | 3 | |
| Léo Lacroix | 3 | |
| 17. | Matthew Grimaldi | 2 |
| Tongo Doumbia | 2 | |
| Adisu Bayew | 2 | |
| Panagiotis Kone | 2 | |
| Tomislav Uskok | 2 | |
| Andrew Durante | 2 |