Transport in Bulgaria is dominated by road transport, despite nearly half of all paved roads belonging to the lowest category of roads. As of December 2015, the country had 829 kilometers of highways.

Highways in Bulgaria are dual carriageways, grade separated with controlled-access, designed for high speeds. In 2012, legislation amendments defined two types of highways: motorways and expressways. The main differences are that motorways have emergency lanes and the maximum allowed speed limit is 140 km/h (87 mph), while expressways do not and the speed limit is 120 km/h (75 mph). As of October 2023, a total of 879,1 kilometers of motorways are in service.