RV Ocean Researcher V (traditional Chinese: 海研五號; simplified Chinese: 海研五号; pinyin: Hǎiyán Wǔ Hào) was a research vessel owned by the Taiwan Ocean Research Institute that sank off the coast of Penghu, Taiwan in 2014.

At a cost of NT$1.46 billion (US$48 million),[3] the Ocean Researcher V was built by Jong Shyn Shipbuilding Company, Kaohsiung, and launched in August 2012[4] for the Taiwan Ocean Research Institute, part of the National Applied Research Laboratories under the Ministry of Science and Technology.

[2] On the evening of 10 October 2014, due to Typhoon Vongfong, the ship ran onto a reef off the Penghu Islands.

Eight rescue helicopters, two C-130 transport planes, four navy frigates and five patrol boats were sent to the accident scene.

[6] One researcher was pronounced dead upon arrival at hospital and another died when attempts to resuscitate him failed.