Wager's Action off Cartagena is an oil on canvas seascape history painting by the English artist Samuel Scott in . It depicts Wager's Action in 1708, a naval a battle during the War of the Spanish Succession when the Royal Navy under Admiral Charles Wager attacked and sank ships of the Spanish treasure fleet.
It was painted between 1743 and 1747, at a time when Britain and Spain were again in conflict during the War of the Austrian Succession. Centuries later the sunken galleon became a contentious issue as several countries staked a claim to the wreck as a treasure trove. The painting is in the National Maritime Museum in Greenwich.