Peter Martin Christian Souissa is a Micronesian politician who served as the 8th President of the Federated States of Micronesia, from 11 May 2015 to 11 May 2019.

The president of the Federated States of Micronesia is the head of state and government of the Federated States of Micronesia (FSM). The FSM president, by virtue of his or her office, is the head of the FSM Cabinet and is in charge of the administration and operations of the National Government. The president is assisted by the vice-president, both of whom are elected by the FSM Congress from among the at-large members to serve for four-year terms. The current and tenth president of the FSM is Wesley Simina, who replaced David Panuelo on 11 May 2023.