Trikeri (, Tríkeri) is a town and a former community in Magnesia, Thessaly, Greece. Since the 2011 local government reform it is part of the municipality South Pelion, of which it is a municipal unit. It lies at the westernmost point of the hook-like Pelion Peninsula on the Pagasetic Gulf. It also includes the offshore islands of Paleo Trikeri (pop. 87) and Alatás (pop. 5). The municipal unit has a total population of 1,353 inhabitants (2011 census) and a land area of . Its largest settlements are the towns of Trikeri (pop. 1,022) and Agia Kyriaki (, Agía Kyriakí; pop. 199), both on the mainland.