I have some musical gear listed on eBay and had a bidder for an item from Poland, even though I marked the item as only shipping to the US:

Shipping to: United States
Excludes: Alaska/Hawaii, US Protectorates, APO/FPO, Africa, Asia, Central America and Caribbean, Europe, Middle East, North America, Oceania, Southeast Asia, South America, PO Box

Is there any way to block non-US bidders?  What do I do if he wins?

You can cancel their bids.

Cancel it before bid is up .

 

Thanks!

Dunno if this will get you to where you wanna be: http://offer.ebay.com/ws/eBayISAPI.dll?BuyerBlockPreferences

or

http://my.ebay.com/ws/eBayISAPI.dll?MyeBay&CurrentPage=MyeBayMyAccounts&MyEbayBeta=&FClassic=true

If neither worked, go to MY EBAY, and look for the ACCOUNT tab and click it.   On the left will be "Site Preferences"

In site preferences, look for BUYER REQUIREMENTS, then hit SHOW on the right side, then EDIT.

Buyers in locations to which I don't ship

	Block buyers whose primary shipping address is in a location I don't ship to.
	This requirement can help you avoid buyers who agree to purchase your items without realizing you don't ship to their location.

That should do it.

Thanks, I just went and updated those settings.  I also changed PayPal to block payment attempts in non-US currencies.