Originally Posted by Middle_Seat

I don't know of any routers with that functionality. You can log into them and turn off the wireless, but it's not just a button push.

One thing you can do that might achieve the desired result is to unscrew the antenna. Some signal still leaks out and in, but the range is much reduced. If you choose to not use encryption (e.g., WPA2), this reduces the chance of neighbors using your signal.