If I buy a Mac in US, will it be quarantee in turkey? I am worrying About it.

A US warranty will not be honored in Turkey. From the warranty:

IMPORTANT RESTRICTION FOR iPHONE AND iPAD SERVICE.

Apple may restrict warranty service for iPhone and iPad to the country where Apple or its Authorized Distributors originally sold the device.

•AppleCare Protection Plan Terms & Conditions - Apple Legal - Sales & Support:

http://www.apple.com/legal/sales-support/applecare/appgeos.html

The conditions and terms vary depending on jurisdiction and local laws involved.

And as mentioned, the iPhone and other devices have more specific support

issues and answers. Independent third-party Apple authorized repair services

may be able to repair items, but the warranty may not be valid in some regions.

And they can choose to not handle those products in such regions.

Other rules and conditions may apply; however to research the Apple web site

for such details is a recommendation. Certain regions or locations have different

rules and conditions. And perhaps sub-sets of rules and conditions as well.

Generally speaking, we who reply here are not representative of Apple, but are

users who try & help other users.

Good luck! 🙂