I don't believe the dates have been released yet but my guess would be 4/21 will be the last night of Mardi Gras for 2012.I am going to Orlando April 22-29. I was wondering if anyone knew when Mardi Gras will end next year? I can't find the dates anywhere. This year it ended April 23 so I don't know if that means it will end the 21 or 28 this year.