British Business Energy:

The map above, shows the various electrical plugs and sockets used around the world. As you can see, few countries use just one type of plug or socket.

And:

The map was created by us by combining this map from Wikipedia, along with plug and socket types from the International Electrotechnical Commission (IEC).

Here’s a link to the map. For more detail, check this Wikipedia page. Bookmark ’em both.

[H/T Aijaz Ansari]