MareCet is a Malaysian non-profit conservation group dedicated to the research and conservation of marine mammals and the greater marine environment within Malaysia. MareCet is a portmanteau of the words Mare, meaning sea in Latin and Cet, a truncation of the scientific name cetacean, referring to the collective name for dolphins, whales and porpoises.

MareCet conducts research studies on specific cetacean species, sharing their learnings with relevant governmental agencies and local communities in order to translate data into on-the-ground conservation action. Their research projects include Langkawi Dolphin Research, their flagship project, investigating the population and behaviours of Indo-Pacific humpback dolphins and Indo-Pacific finless porpoises around the Langkawi archipelago and adjacent Kedah mainland; The Matang Dolphin Research Project in Perak; and the Dugong Research and Conservation Johor, where a critical habitat for Malaysia’s dugong population is located.