This list of tunnels in Spain includes any road, rail or waterway tunnel in Spain.
Guadarrama Tunnel (28,377 m High-speed railway) Pajares Base Tunnel (24,667 m High-speed railway) M-30 / Calle-30 By-pass Sur (12,000 m Road) M-50/M-61 Tunel del Pardo (11,500 m Road, project) Tunnels de San Pedro (8,930 m High-speed railway) Tunnel del Somport (8,608 m Road) Perthus Tunnel (8,350 m High-speed railway) Northern Access Tunnel to Vigo (8,100 m High-speed railway, under construction) Tunnel del Somport (7,710 m Railway, closed) Tunnels del Abdalajís (7,300 m High-speed railway) Tunnel de la Risa II (7,700 m Railway) Tunnel de la Risa III (7,500 m High-speed railway) Tunnel de la Risa I (7,300 m Railway) Tunnels del Ave in Valencia (7,000 m High-speed railway, under construction) Engaña Tunnel (6,976m - never used) Tunnel of Provença (5,640 m High-speed railway) (Viella I) Alfonso XIII Tunnel (5,230 m Road, semi-closed) (Viella II) Juan Carlos I Tunnel (5,240 m Road) Túnel del Cadí (5,026 m Road) Tunnel de Paracuellos (4,672 m High-speed railway) Tunnel del Bracons (4,500 m Road) M-30 By-pass Norte-Pio XII (4,187 m Road, project) Negrón Tunnel (4,144 m Road) Tunnel de Somosierra (3,895 m Railway) Tunnel de Isuskitza (3,377 m Road) AP-6 Guadarrama nº2 (3,340 m Road) Tunnel de La Aldea (3,176 m Road) AP-6 Guadarrama nº3 (3,148 m Road) Tunnel de Bielsa-Aragnouet (3,070 m Road) Tunnel de Soller (3,023 m Road) Tunnel del Monrepós (2,900 m Road, under construction) AP-6 Guadarrama nº1 (2,870 m Road) Tunnel de la Hechicera (2,835 m High-speed railway) M-111 Madrid-Aeropuerto (2,600 m Road) Tunnel de Piqueras (2,598 m Road) Tunnel de Vallvidrera (2,517 m Road) Tunnel de Taurito (2,467 m Road) Tunnel de Pedralba (2,444 m Road) Tunnel de Faneque (2,044 m Road) Rio Monterroso (1,160 m Culvert)
See also List of tunnels by location