1978–79 FA Cup Third round proper Third round proper

| Tie_no | Home_team | Score | Away_team | Date_ |
|---|---|---|---|---|
| 18 | Manchester City | 0–0 | Rotherham United | 15 January 1979 |
| Replay | Rotherham United | 2–4 | Manchester City | 17 January 1979 |
| 19 | Fulham | 2–0 | Queens Park Rangers | 9 January 1979 |
| 20 | Coventry City | 2–2 | West Bromwich Albion | 9 January 1979 |
| Replay | West Bromwich Albion | 4–0 | Coventry City | 15 January 1979 |
| 21 | Brighton & Hove Albion | 2–3 | Wolverhampton Wanderers | 9 January 1979 |
| 22 | Manchester United | 3–0 | Chelsea | 15 January 1979 |
| 23 | Wimbledon | 0–2 | Southampton | 9 January 1979 |
| 24 | Southend United | 0–0 | Liverpool | 10 January 1979 |
| Replay | Liverpool | 3–0 | Southend United | 17 January 1979 |
| 25 | Newport County | 2–1 | West Ham United | 9 January 1979 |
| 26 | Charlton Athletic | 1–1 | Maidstone United | 9 January 1979 |