East Moran Bay is a small, historic harbor in the Straits of Mackinac adjacent to the city of St. Ignace in the U.S. state of Michigan. The harbor is used as a commercial port for Star Line Ferry and Shepler's Ferry ferry boats from St. Ignace to Mackinac Island, a tourist center of the Straits of Mackinac. The bay and its harbor are guarded by the Wawatam Lighthouse.