Board Thread:Support Requests - Community Management/@comment-5283174-20140312193225/@comment-86.186.81.36-20140312202814

Well, I think you can't delete a wiki, but you can close it. Send reasons why you want your wiki deleted through Special:Contact OR send a message to staff here why. It is not recommended you close your wiki. It is only closed commonly for violating Wikias ToU, but I doubt it will close.