There is no wedding etiquette rule that says the bride’s attendants must be female. Your maid (or man) of honor should be the person you trust most with this very important role. Lady’s look great in a tux if they want to wear one. Again not have to. This also means your man of honor should have to wear a bridesmaid dress, but have a little fun with it. You’ll be glad to have your best friend standing next to you on this very important occasion. In the end, that’s all that matters.