1979–80 FA Cup Second Round Proper Second Round Proper

| Tie_no | Home_team | Score | Away_team | Date_ |
|---|---|---|---|---|
| 1 | Chester | 1–0 | Barnsley | 18 December 1979 |
| 2 | Croydon | 1–1 | Millwall | 15 December 1979 |
| Replay | Millwall | 3–2 | Croydon | 18 December 1979 |
| 3 | Darlington | 0–1 | Bradford City | 15 December 1979 |
| 4 | Bury | 0–0 | York City | 15 December 1979 |
| Replay | York City | 0–2 | Bury | 18 December 1979 |
| 5 | Yeovil Town | 1–0 | Slough Town | 15 December 1979 |
| 6 | Reading | 3–1 | Barking | 15 December 1979 |
| 7 | Walsall | 1–1 | Halifax Town | 15 December 1979 |
| Replay | Halifax Town | 1–1 | Walsall | 18 December 1979 |
| Replay | Halifax Town | 2–0 | Walsall | 24 December 1979 |
| 8 | Blackburn Rovers | 2–0 | Stafford Rangers | 17 December 1979 |