Mo can mean:

• Mo is a fictional country featured in the book The Magical Monarch of Mo by L. Frank Baum, and neighboring on the Land of Oz.
• Mo is also the symbol for the chemical element Molybdenum.
• Mo Hundred of Westrogothia in Sweden
• "Mo" was the nickname of popular 20th century Australian stage comedian Roy Rene
• The Mo Awards , named in honour of Rene, are annual awards for Australian live entertainment.