Institute of Marine Science(s) or Marine Science(s) Institute may refer to:
Asia Marine Science Institute, University of the Philippines Diliman, in Quezon City, National Capital Region, Philippines Institute of Marine Science, Burapha University, in Saen Suk, Chonburi, Thailand Institute of Marine Sciences, Middle East Technical University, in Erdemli, Mersin Province, Turkey Institute of Marine Sciences, University of Chittagong, in Chittagong, Bangladesh
Oceania
Australian Institute of Marine Science, in Townsville, Queensland, Australia Sydney Institute of Marine Science, in Sydney, New South Wales, Australia
North America
Marine Science Institute (San Francisco Bay), in Redwood City, California, USA University of Texas at Austin Marine Science Institute, in Port Aransas, Texas, USA Virginia Institute of Marine Science at the College of William and Mary, in Williamsburg, Virginia, USA