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.

Philippine Span Asia Carrier Corporation (PSACC), formerly branded as Sulpicio Lines, Inc., is a major shipping line in the Philippines. PSACC is one of the largest domestic shipping and container companies in the Philippines in terms of the number of vessels operated and gross tonnage. The company provides inter-island cargo services throughout the major ports and cities in the Philippines.