Is there a motorbike hire shop at/near Samui Airport. I want to hire a bike at Airport, keep it for a week, then return it to Airport.

This will save a couple of Taxi fares also.

I think you need to get to Ban Rak or Chawang areas or else where....don't remember seeing shops near airport....assuming no one else has either.

Actually there are a couple of motorbike rental shops close by arrivals here at the Samui airport. There are no rental shops at the airport itself but can walk to shops in less than 10 minutes with one just 5 minutes or less. The closest one is out through arrivals to the corner with a Family Mart on the left and 7-11 on the right, turn right on this road and about 100 meters on the left down this road is a massage shop that rents motorbikes. There are two others that are to the left from the same arrivals exit but farther walk one about 200 meters on the right and the other about 600 meters on the right. I don't know these shops and can not vouch for them, only that they are near to arrivals. But be careful when walking on this road, it is very busy and the road is busy. Walk towards oncoming traffic. Good luck.