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.

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The Super Mario Bros. Movie' is bleakly honest with audiences

Luigi - Wikipedia

The Super Mario Bros Movie review – wackily eccentric gamer guys fall flat on screen, Movies

The Super Mario Bros. Movie Feels Like It Was Designed In A Lab

Mario vs Luigi Super mario bros games, Mario bros, Mario and luigi

Mario's last name? : r/Marioverse

Are Mario And Luigi Real Brothers? Mario Bros. Names Explained, mario e luigi

Your 'Super Mario Bros.' character based on your zodiac sign

The Cast of 'The Super Mario Bros Movie': All About the Voice Actors

Luigi - Super Mario Wiki, the Mario encyclopedia