The Blue Jay's rival is the Baltimore Oriole, a 6 letter word. The Baltimore Orioles are a Major League Baseball team based in Baltimore, Maryland. They are members of the American League East Division and have been in existence since 1901. The Orioles have won three World Series championships and seven American League pennants. The rivalry between the Blue Jays and Orioles dates back to the 1970s when the two teams were both part of the American League East Division. The rivalry has intensified in recent years as the two teams have competed for division titles and playoff spots.