| P | # | Player | Born | Height | Weight | Contract | |
|---|---|---|---|---|---|---|---|
| GK | Mark Bunn | 1984-11-16 | 183 | 77 | 2017-06-30 | ||
| D | Jason Crowe | 1978-09-30 | 175 | 67 | |||
| M | Alex Dyer | 1990-06-01 | 177 | 74 | 2019-12-31 | ||
| M | Bradley Johnson | 1987-04-28 | 178 | 68 | 2019-06-30 | ||
| M | Daniel Jones | 1986-12-23 | 188 | 89 | |||
| M | Ryan Gilligan | 1987-01-18 | 183 | 80 | 2017-12-31 | ||
| F | Colin Larkin | 1982-04-27 | 175 | 64 | |||
| F | Poul Hübertz | 1976-09-21 | 195 | 96 |
| Date | Player | From | To | Status | Src |
|---|---|---|---|---|---|
| 30.Jun | Matt Grimes (M) | Northampton Town | Swansea City | Confirmed | |
| 30.Jun | Chris Long (F) | Northampton Town | Burnley FC | Confirmed | |
| 21.Jan | Kenji Gorré (F) | Northampton Town | Swansea City | Confirmed | |
| 29.Jul | Kenji Gorré (F) | Swansea City | Northampton Town | Confirmed | |
| 6.Aug | Ivan Toney (F) | Northampton Town | Newcastle United | Confirmed | |
| 10.Oct | Enda Stevens (D) | Aston Villa FC | Northampton Town | Confirmed | |
| 19.Aug | Ashley Corker (D) | Northampton Town | KuPS | Confirmed | |
| 30.Jul | Ryan Gilligan (M) | Northampton Town | Östersunds FK | Confirmed | |
| 1.Jan | Ben Harding (M) | Wycombe Wanderers FC | Northampton Town | Confirmed | |
| 22.Dec | Shane Higgs (GK) | Free Agent | Northampton Town | Confirmed |