Methods, systems, and computer program products for providing a dynamic and flexible media gateway termination identifier are disclosed. According to one aspect, the subject matter described herein includes a method for flexibly identifying terminations within a media gateway. The method includes receiving a syntax for representing terminations of a media gateway, communicating the syntax to a network node for processing media gateway control messages, and, at the network node, processing a media gateway control message using the syntax to identify a termination of the media gateway.