Team Logo. The Portland Sea Dogs are a team in the Eastern League. They are the Double-A affiliate of the Boston Red Sox. Their stadium is named after a local baseball coach. Retrieved from "https://prosportsteams.fandom.com/wiki/Portland_Sea_Dogs?oldid=16429" Categories: Eastern League teams Teams in Maine Teams in Portland (ME) Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.