12.09.2014 Asia-Pacific Workshop on Marine Hydrodynamics (APHydro) is now well recognized as the serial international workshop mainly concerning hydrodynamics in the area of naval architecture, ocean engineering and other marine related aspects. The main aim of the workshops is to promote the technical and cultural exchange among marine researches in the Asia Pacific Region. In 2014, the APHydro 2014 Workshop (the 7th in number) will be held in Vladivostok, Russia, on September 9-13. Over forty papers of the researchers from Japan, the Republic of Korea, Malaysia, China, Vietnam, Indonesia, and Russia are published in the conference proceedings. The main aim of the workshops is to promote the technical and cultural exchange among marine researches in the Asia Pacific region.