FA Cup 2022/23, Extra Preliminary Round |
 | 06.08.2022 | | Harefield United | – | Lordswood | | 3:2 (2:0) |
| London |
FA Cup 2021/22, Preliminary Round |
| 21.08.2021 | | Harefield United | – | Binfield | | 2:1 (0:0) |
| London |
FA Cup 2021/22, Extra Preliminary Round |
| 07.08.2021 | | Chipping Sodbury Town | – | Harefield United | | 1:2 (1:1) |
| Chipping Sodbury |
FA Cup 2020/21, Extra Preliminary Round |
| 01.09.2020 | | Tuffley Rovers | – | Harefield United | | 2:5 |
| Tuffley |
FA Cup 2019/20, Extra Preliminary Round |
| 10.08.2019 | | Harefield United | – | Lydney Town | | 3:0 (0:0) |
| London |
FA Cup 2016/17, Preliminary Round |
| 23.08.2016 | | Harefield United | – | Wembley | | 2:1 * |
| London |
FA Cup 2014/15, Extra Preliminary Round |
| 16.08.2014 | | Harefield United | – | Crawley Green | | 2:1 |
| London |
FA Cup 2013/14, Extra Preliminary Round |
| 17.08.2013 | | Harefield United | – | Woodford United | | 3:0 |
| London |
FA Cup 2012/13, First Qualifying Round |
| 08.09.2012 | | Colney Heath | – | Harefield United | | 1:2 |
| Colney Heath |
FA Cup 2012/13, Preliminary Round |
| 25.08.2012 | | London Colney | – | Harefield United | | 1:2 |
| London Colney |
FA Cup 2012/13, Extra Preliminary Round |
| 11.08.2012 | | Harefield United | – | Hillingdon Borough | | 3:0 |
| |
FA Cup 2011/12, Extra Preliminary Round |
| 20.08.2011 | | Holmer Green | – | Harefield United | | 2:4 |
| |
FA Cup 2010/11, Extra Preliminary Round |
| 14.08.2010 | | Leverstock Green | – | Harefield United | | 1:2 |
| |
FA Cup 2009/10, First Qualifying Round |
| 12.09.2009 | | Harefield United | – | Maldon Town | | 3:1 |
| |
FA Cup 2009/10, Preliminary Round |
| 29.08.2009 | | Harefield United | – | Biggleswade Town | | 2:1 |
| |
FA Cup 2009/10, Extra Preliminary Round |
| 18.08.2009 | | Haringey Borough | – | Harefield United | | 1:3 * |
| |
FA Cup 2008/09, Extra Preliminary Round |
| 16.08.2008 | | Bowers & Pitsea | – | Harefield United | | 1:2 |
| |
FA Cup 2006/07, Extra Preliminary Round |
| 22.08.2006 | | Harefield United | – | Halstead Town | | 3:1 * |
| |
FA Cup 2002/03, First Qualifying Round |
| | | Harefield United | – | Barton Rovers | | 2:1 |
| |
FA Cup 2002/03, Preliminary Round |
| | | East Thurrock United | – | Harefield United | | 1:2 |
| |
FA Cup 1994/95, Preliminary Round |
| | | Harefield United | – | Hoddesdon Town | | 1:0 * |
| |
FA Cup 1993/94, Preliminary Round |
| | | Hanwell Town | – | Harefield United | | 1:2 |
| |
FA Cup 1987/88, First Qualifying Round |
| | | Harefield United | – | Crockenhill | | 3:1 |
| |
FA Cup 1986/87, First Qualifying Round |
| | | Harefield United | – | Corinthian-Casuals | | 3:0 |
| |
FA Cup 1985/86, Preliminary Round |
| | | Harefield United | – | Hertford Town | | 3:0 * |
| |
FA Cup 1980/81, First Qualifying Round |
| | | Leyton-Wingate | – | Harefield United | | 0:3 |
| |
