This isn’t meant to be a comprehensive list, but I also haven’t seen anything like this on the internet.
Unless its taste is explicitly described, I haven’t been to any of these chain restaurants here or bought these products personally, just seen them, so I can’t comment on how they are. A friend of mine says that in general, the food mostly tastes the same but is more expensive than in the US, and portions may be slightly smaller. Most sit-down restaurants that aren’t fast food chains are way pricier than you’d expect, even after converting. I was surprised at how many chains were available in Singapore despite the fact Singapore’s known for being one of the most westernized Asian cities.
As a general rule of thumb, even though Singapore imports most of its food, Western food always costs more.
Like many other posts on this blog, I will occasionally go back and ninja-edit this.
If you’re looking for non-food products, I can’t help as much with that–there’s so many shopping malls in Singapore with common fashion brands that I won’t bother to list them all.
And don’t worry, there’ll be a future blog post sometime on local cuisine.
WORLDWIDE CHAIN RESTAURANTS/SNACKERIES I’VE SEEN IN SINGAPORE:
California Pizza Kitchen
The Coffee Bean & Tea Leaf
Gyu-Kaku Japanese BBQ
Hard Rock Café
Kentucky Fried Chicken
McDonald’s (this is an interesting blog to follow. The current promotion is a Samurai Tamago, aka grilled egg, burger)
Ruth’s Chris Steakhouse
Subway (sans $5 footlong promotion)
WORLDWIDE PRODUCT BRANDS AVAILABLE IN SINGAPORE:
7-Up Soft Drink (different logo design than in the US)
A&W Root Beer
Ben & Jerry’s Ice Cream
Coca-Cola Soft Drink (they have Coke Zero, but Diet Coke is harder to find)
Cup Noodle Ramen (local flavors available)
Dole Bananas (they’re from the Philippines, and seem slightly smaller and less flavorful)
Famous Amos Cookies (There’s even a Famous Amos store here, which I’ve never seen in the US)
Fanta Soft Drinks
Ferrero Rocher Chocolates
Good Humor Ice Cream (known as Wall’s here)
Haagen-Dazs Ice Cream
Hello Panda Cookies
Hershey’s Chocolate (including Cookies ‘n’ Creme bars and Kisses)
Honey Bunches of Oats (Post cereal)
Horlicks Malt Drink
Jacob’s Cream Crackers
Kinder Chocolate (including Bueno/Surprise Eggs)
Kit Kat Chocolate
Koala’s March Cream Crackers
Kraft American “Cheese” Singles
Lays Potato Chips (local flavors available, pic in future blog post)
Maltesers Malt Chocolate
Magnum Ice Cream Bars
Mars Chocolate Bars (which for some reason are hard for me to find in the US)
Milo Chocolate Products (mostly Drink)
Mountain Dew Soft Drink
MUG Root Beer
Nature Valley Granola Bars
Nutella Chocolate Spread
Oreo Cookies (Oreos here have thinner cream and different/less flavors available; the Blueberry Ice Cream flavor tastes minty)
Pepsi Soft Drink
Pizza Hut (random note: the Pizza Hut at PEK, Beiing’s airport, is the classiest one I’ve ever seen)
Popeye’s Chicken & Biscuits
Quaker Oatmeal Cookies (haven’t seen the oatmeal yet)
Reese’s Chocolate Peanut Butter Cups (which, according to one of Craig’s flatmates, is not available in Europe)
Peter Pan Peanut Butter
Skippy Peanut Butter
Snickers Chocolate Bar
Special K (Kellogg cereal)
Sprite Soft Drink
Yan Yan Cream Biscuits
Yeo’s Soft Drinks
MISSING OR HARD-TO-FIND WORLDWIDE CHAINS/PRODUCTS (doesn’t mean you can’t find it in Singapore, but they’re uncommon at grocery stores, MRT station convenience stores, and stores on-campus):
Bubble/Chewing Gum (all brands; their sale, though not the products themselves, is illegal in the country)
Chipotle (and without exception, Mexican food is overpriced here)
Twix Chocolate Bar (blog post on them here)
To look up groceries on Fairprice, Singapore’s largest grocery chain, click here.
 My guess is that most bananas consumed in North America and Europe are imported from Latin America, most notably Ecuador; in Africa, from Uganda or locally grown; in China or India, from their own country; and in Southeast Asia and Australia, from the Philippines.
Sources – http://en.wikipedia.org/wiki/Banana#Production_and_export
Also interesting and related, not that it works outside of the US: http://whereismymilkfrom.com/
 Irrelevant to just about everything: I like to call Mountain Dew “Dew of the Mountain”. It sounds so much classier.