Marine cargo insurance is a class of property insurance that insures property while in transit against perils consequent or incidental to the navigation of the sea or air or rail/road/inland waterways.

Marine insurance covers the loss or damage of ships, cargo, terminals, and any transport by which the property is transferred, acquired, or held between the points of origin and the final destination. Cargo insurance is the sub-branch of marine insurance, though Marine insurance also includes Onshore and Offshore exposed property, (container terminals, ports, oil platforms, pipelines), Hull, Marine Casualty, and Marine Liability. When goods are transported by mail or courier, shipping insurance is used instead.