Vestfold Maraton is a road race in Norway connecting Larvik and Tønsberg, offering both a marathon and a half-marathon. The marathon begins at Hegdal industriområde in Larvik and concludes at Jahn Teigens plass on Tønsberg's pier. The full marathon covers the official 42.195 kilometers, measured and verified by a Kondis-approved course measurer. The half-marathon starts at Torp station Råstad.
The event caters to both recreational and serious runners, including young participants and adults. Vestfold Maraton AS manages the race, which is owned by Bedriftsidretten, Tjølling IF, Vear IF, and Barkåker IF, with GØIF assisting on race day. The organizers refer to it as a running journey from Larvik to Tønsberg, and they have also proposed a relay marathon concept for Vestfold, following a model similar to Holmenkollstafetten.