The following is a list of highways in Portugal. The Portuguese highway system is well spread out over the country. As well as the following roads it includes many national 2 lane roads.
Itinerário principal (principal itinerary)
| Number | Direction | Route |
| IP1 | north\south | designated as A3, A1, A12, A2 and A22; Valenca to Vila Real de Santo Antonio through Oporto, Lisbon and Faro |
| IP2 | north\south | Faro to Bragança |
| IP3 | north\south | designated partially as A14&A24 and as itself from Coimbra to Viseu |
| IP4 | west\east | A4 and the remaining road to Bragança and Spain |
| IP5 | west\east | designated as A25 |
| IP6 | west\east | designated as A23 |
| IP7 | west\east | designated as A6 |
| IP8 | west\east | Ficalho to Sines, through Beja |
| IP9 | west\east | designated as A27 |
Itinerário complementar (complementary itinerary)
| Number | Direction | Route |
| IC1 | north\south | Albufeira to Setúbal then on to Lisbon and Spain |
| IC2 | north\south | designated as N1 |
| IC3 | north\south | Entroncamento to the IC8 |
| IC4 | L shape | extension of A22 to run to Aljezur and as its own road to Sines |
| IC5 | west\east | designated as A7 |
| IC6 | west\east | Santa Comba Dão to Celorico da Beira |
| IC7 | east/west | Penacova to Oliveira do Hospital |
| IC8 | east/west | Pombal to Vila Velha de Rodao |
| IC9 | west\east | Alcobaça to Tomar |
| IC10 | west\east | Santarém to Estremoz - designated as A13 |
| IC11 | west\east | Torres Vedras to Marateca |
| IC12 | north/south | Sta. Comba Dao to Nelas |
| IC13 | east/west | western Setúbal to Alcochete and then in another chunk from Mora to Ponte de Sor and in yet another chunk from Portalegre to Valencia de Alcántara in Spain |
| IC14 | west\east | Barcelos to Braga - designated as A11 |
| IC15 | west\east | Lisbon to Cascais - designated as A5 |
| IC16 | west\east | Bairro Da Coopalme to Idanha - designated in part as A16 |
| IC17 | inner loop | CRIL inner loop of the Lisbon Area - designated as A36 |
| IC18 | outer loop | CREL outer loop of the Lisbon area - designated as A9 |
| IC19 | west\east | Ranholas to Bucara - designated as A37 |
| IC20 | west\east | Almada to Costa da Caparica - designated as A38 |
| IC21 | north\south | Vila Amélia to Barreiro - designated as A39 |
| IC22 | north\south | Olival Basto to Montemor- designated as A40 |
| IC23 | Inner loop | Oporto Ponte da Arrábida to Oporto Ponte de Freixo - as A1\A20\A44 |
| IC24 | outer loop | Oporto outer loop Espinho to Perafita - designated as A41 |
| IC25 | | |
| IC26 | | |
| IC27 | north\south | Trindade to Monte Francisco |
| IC28 | west\east | Real Baixo to Lama |
| IC29 | west\east | Bonjoia to Covelo - designated as A43 |
| IC30 | west\east | Bairro Da Alegria to Bairro Da Coopalme - designated as part of A16 |
| IC31 | | |
| IC32 | west\east | Caparica to Vale Da Resina - designated as A33 |
Estrada nacional (national road)
Estrada regional (regional road)
Estrada municipal (municipal road)
Lists of highways in Europe |
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States with limited recognition | - Abkhazia
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Dependencies and other entities | - Åland
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