Lay's -
Not only do Brits call chips "crisps," but they even call Lay's Walkers. Walkers was bought in 1989 by Lay's owners, PepsiCo, and they kept the name in the UK.
KFC -
Kentucky Fried Chicken or KFC exported their brand worldwide under the same name...except for Quebec, Canada. There, it's called Poulet Frit Kentucky, or PFK.
Cool Ranch Doritos -
You will find these on most of Europe's shelves sold as Cool American Doritos or Cool Original Doritos.
Axe -
The name Axe was already trademarked in the UK, Ireland, Australia, and China, so they changed it to Lynx.
Budweiser -
In many European countries Budweiser is sold as Bud. This is because Budweiser is trademarked by Czech beer maker Budweiser Budvar.
Milky Way -
Yes, you will find candy bars branded as Milky Way outside the US, but they are nothing like the American version. What you want is a Mars bar.
Magners Irish Cider -
Magners Irish Cider is known as Bulmers Irish Cider in Ireland.
Downy -
You can still use your favorite Downy softener when you do the laundry in Europe, just make sure you buy Lenor.
Diet Coke -
In some countries you will have to ask for a Coca-Cola Light, instead of a Diet Coke.
Hellmann's -
Okay, you can actually find Best Foods in some parts of the US, but you won't find Hellmann's in Asia, nor in countries such as Australia and New Zealand.