The Sveti Rok Tunnel is a highway tunnel in Lika, Croatia. It is 5,679 m (6,211 yd) long and it passes through the Velebit mountain. Sveti Rok Tunnel is located on a part of the between highway exits Sveti Rok and Maslenica on the A1 highway. The village Sveti Rok and village Maslenica are located near the tunnels respective northbound and southbound entrances, but they are accessible only by highway exits. The western shaft of the tunnel was opened in on 30 June 2003, and the eastern shaft was opened on 30 May 2009.
The northern portal of the tunnel is located at 561 m.a.s.l., while the southern portal is located at 510 m.a.s.l.. The east tunnel tube is slightly longer than the west one - as they are 5,679 metres (18,632 ft) and 5,670 metres (18,600 ft) long respectively. The tunnel tubes are executed 25 metres (82 ft) m apart, and are connected by 4 passages for vehicles and 15 other passages, accessible on foot.