| Country: | POL |
| Type: | S |
| Route: | 79 |
| Map: | PL droga ekspresowa S79.svg |
| Length Notes: | plus 21NaN1 concurrent with Expressway S2 |
| Length Km: | 4.8 |
| Terminus A: | Warszawa–Marynarska junction (Warsaw) |
| Terminus B: | Warszawa–Puławska junction (Warsaw) |
| Cities: | Warsaw |
| Previous Type: | S |
| Previous Route: | 74 |
| Next Type: | S |
| Next Route: | 86 |
Expressway S79 is an expressway in Warsaw acting as a spur route between the southern S2 Expressway section of the Warsaw Express Ring Road at Warszawa Południe junction and Int. Frederic Chopin Airport, ending at the junction with the inner-city Marynarska road. On a stretch between Warszawa Południe and Warszawa–Puławska junctions, S79 has concurrency with S2.
The road was completed in September 2013 and in the future will act as a major Warsaw exit route to the S7 Expressway towards Kraków.