Super Mario Bros: What Is Mario and Luigi's Last Name?

If their last name isn’t “Mario,” then why are they called the “Mario Bros?” Nobody can agree, and even when they do, they eventually change their minds.

Super Mario Bros. Wonder characters – who can you play as?

Who does Charles Martinet play in The Super Mario Bros. Movie? - Polygon

Mario's last name is Mario? : r/Mario

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Fixed) I made a family tree with all of Mario and Luigi's known family members because no one else did : r/Mario

Super Mario Bros: What Is Mario and Luigi's Last Name?

8 things you didn't know about Super Mario Bros.

8 things you didn't know about Super Mario Bros.