| Name | Name in Portuguese | Location | Length | Type | Year | Comment |
|---|
| Metro Lisbon - Blue (Seagull) Line | Linha Azul ou Linha da Gaivota | Lisbon | 140000NaN0 | Metro | 1959–2007 | |
| Metro Lisbon - Yellow (Sunflower) Line | Linha Amarela ou Linha do Girassol | Lisbon | 110000NaN0 | Metro | 1959–2004 | |
| Metro Lisbon - Green (Caravel) Line | Linha Verde ou Linha da Caravela | Lisbon | 90000NaN0 | Metro | 1972–2002 | |
| Metro Lisbon - Red (Orient) Line | Linha Vermelha ou Linha do Oriente | Lisbon | 82000NaN0 | Metro | 1998–2009 | |
| Marão Tunnel | Túnel do Marão | Serra do Marão mountain range | 56650NaN0 | Road | 2016 | Longest road tunnel in Portugal and third longest in the Iberian Peninsula. |
| Cortado Tunnel | Túnel do Cortado | Madeira | 31680NaN0 | Road | 2004 | Longest road tunnel in Madeira. |
| Ponta do Sol Tunnel | Túnel da Ponta do Sol | Madeira | 31670NaN0 | Road | 2004 | |
| Encumeada Tunnel | Túnel da Encumeada | Madeira | 27000NaN0 | Road | 2004 | |
| Rossio Tunnel | Túnel do Rossio | Lisbon | 26130NaN0[1] | Railway | 1890 | Longest railway tunnel in Portugal. |
| Jardim do Mar Tunnel | Túnel do Jardim do Mar | Madeira | 25110NaN0 | Road | 2001 | |
| Curral das Freiras Tunnel | Túnel do Curral das Freiras | Curral das Freiras, Madeira | 23830NaN0 | Road | 2004 | |
| Caniçal Tunnel | Túnel do Caniçal | Caniçal, Madeira | 21250NaN0 | Road | 2004 | |
| North Tunnel | Túnel do Norte | Madeira | 20970NaN0 | Road | 2001 | |
| Ribeira Brava Tunnel | Túnel da Ribeira Brava | Ribeira Brava, Madeira | 18060NaN0 | Road | | |
| Gardunha Tunnel | Túnel da Gardunha | Serra da Gardunha, near Fundão | 15800NaN0 | Road | 1997–2003 | Road |
|
