Opening Day is the day on which professional baseball leagues begin their regular season.

Opening Day may also refer to:

• "Opening Day" (Brockmire), a 2019 television episode
• "Opening Day" (Hi-de-Hi!), a 1984 television episode
• "Opening Day" (The Twilight Zone), a 1985 television episode
• "The Opening Day", a 1991 episode of television series The Brittas Empire

This disambiguation page lists articles associated with the title Opening Day.
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