The deadliest peacetime maritime disaster in history occurred when the MV Doña Paz sank after colliding with an oil tanker in the Tablas Strait in the Philippines, resulting in an estimated 4,385 deaths.

The list of maritime disasters is a link page for maritime disasters by century.

MV Doña Paz was a Japanese-built and Philippine-registered passenger ferry that sank after it collided with the oil tanker Vector on December 20, 1987. Built by Onomichi Zosen of Hiroshima, Japan, the ship was launched on April 25, 1963 as the Himeyuri Maru with a passenger capacity of 608. In October 1975, the Himeyuri Maru was bought by Sulpicio Lines and renamed the Don Sulpicio. After a fire aboard in June 1979, the ship was refurbished and renamed Doña Paz.

An oil tanker, also known as a petroleum tanker, is a ship designed for the bulk transport of oil or its products. There are two basic types of oil tankers: crude tankers and product tankers. Crude tankers move large quantities of unrefined crude oil from its point of extraction to refineries. Product tankers, generally much smaller, are designed to move refined products from refineries to points near consuming markets.

Tablas Strait, also Tabuas Strait, is a strait in the Philippines separating Mindoro Island, Tablas Island, Panay and Romblon islands. The approximate depth of the strait is 545 meters (1,788 ft).