The Coupe de France 1978–79 was its 62nd edition. It was won by FC Nantes which defeated AJ Auxerre in the Final.
| Tournament details | |
|---|---|
| Country |  France |
Round of 16
edit| Team 1 | Agg. | Team 2 | 1st leg | 2nd leg |
|---|---|---|---|---|
| Lille OSC (D1) | 5–2 | AS Monaco (D1) | 2–1 | 3–1 |
| SC Bastia (D1) | 1–6 | RC Strasbourg (D1) | 0–2 | 1–4 |
| FC Nantes (D1) | 4–2 | OGC Nice (D1) | 2–1 | 2–1 |
| Olympique de Marseille (D1) | 6–3 | Angers SCO (D2) | 4–2 | 2–1 |
| AS Nancy (D1) | 1–3 | AS Angoulême (D2) | 1–0 | 0–3 |
| Stade de Reims (D1) | 1–2 | Avignon Football 84 (D2) | 1–1 | 0–1 |
| FC Gueugnon (D2) | 3–2 | AS Saint-Étienne (D1) | 3–0 | 0–2 |
| AJ Auxerre (D2) | 2–0 | Montpellier HSC (D2) | 0–0 | 2–0 |
Quarter-finals
edit| Team 1 | Agg. | Team 2 | 1st leg | 2nd leg |
|---|---|---|---|---|
| FC Nantes (D1) | 5–5 (a) | Olympique de Marseille (D1) | 3–1 | 2–4 |
| FC Gueugnon (D2) | 0–8 | RC Strasbourg (D1) | 0–6 | 0–2 |
| Lille OSC (D1) | 1–2 | AJ Auxerre (D2) | 0–0 | 1–2 |
| Avignon Football 84 (D2) | 0–2 | AS Angoulême (D2) | 0–1 | 0–1 |
Semi-finals
editFirst leg
edit| Nantes (1) | 6–2 | Angoulême (2) |
|---|---|---|
Rio  22' (pen.), 49' (pen.)Rampillon 29'Trossero 45'Pécout 52'Muller 79' |
Report | Kovačić 65' Legros 76' |
| Auxerre (2) | 0–0 | Strasbourg (1) |
|---|---|---|
| Report |
Second leg
editNantes won 7–3 on aggregate.
2–2 on aggregate. Auxerre won on away goals.