| Country: | DEU |
| Type: | A |
| Route: | 559 |
| Length Km: | 4.2 |
| Length Notes: | A further 4.2 km is designated as the |
| Direction A: | North |
| Terminus A: | Deutz, Cologne |
| Direction B: | South |
| Terminus B: | Gremberghoven, Cologne |
| States: | North Rhine-Westphalia |
The A 559 is a former alignment of the A 59. The A 59 was rerouted in the 1980s to relieve congestion at the Gremberg four-way interchange with the A 4.
The primary function of the A 559, besides relieving traffic at the A 4 interchange, is to connect the Cologne-Bonn Airport to Cologne proper. The airport is along the A 59, one junction south of the A 559's southern terminus.
The section of road from the junction Köln-Vingst (just after the A 4) to the end of the freeway at Köln-Deutz is up to autobahn standards, but is only designated as the L 124. This stretch of road was signed at one time as the A 559, although the autobahn designation never officially covered the entire freeway.
Road continues as the L 111 into Köln|-| | style="text-align:right; padding:0 .5em;" | (1)| 4-way interchange Gremberg |}