The accident happened on Rong Poh Takian Tia road in Tambon Takian Tia of Chon Buri’s Bang Lamung district.
The woman, Paenghom Mai-ngam, 45, was killed in the driver’s seat of her Toyota car.
Seven workers in a company bus were injured and rushed to a nearby hospital.
The bus driver told police that he saw a car in the opposite lane suddenly cross into his lane, as the driver seemingly tried to avoid something. A crushed snake was found on the road.