Besides the USA, what country borders three oceans?

Australia borders the Pacific Ocean in the east, the Indian Ocean in the west, and the Southern Ocean.

Also, Canada -- Artic, Atlantic, Pacific

Chile borders the Atlantic, Pacific and Southern Oceans.

https://en.wikipedia.org/wiki/Chile
http://travel.nationalgeographic.com/places/maps/map_country_chile.html

According to Steveisms... "There are only two countries that border three oceans. America, Canada and Russia." Well, I thought it was hysterical.

The answer is Canada.

I had this question in a pub quiz on the weekend. Being an Aussie, I naturally put down Australia as I had assumed that Australia bordered the Southern Ocean. After some investigation, I've realised that was mistaken. According to the current edition of the International Hydrographic Organisation, there is no Southern Ocean. The IHO has sought to ammend its nomenclature to include the Southern Ocean but to limit it to those waters south of 60 degrees latitude (Australia has issued a reservation to that limit). Ratification awaits resolution of this, and other, dispute(s).

Thus, as it stands, formally speaking, there is no stretch of water defined at the Southern Ocean for any of these countries to border. Once a definition is ratified, there will be one but it will only border Antarctica - and no country has any undisputed sovereignty over that piece of land (YET!!)

According to the following list, only the USA and Canada directly border three oceans. Russia directly borders the Pacific and the Arctic Oceans, and the Atlantic by way of the Black Sea and the Baltic Sea. Australia, Chile and South Africa's status is doubtful, as the Southern Ocean does not really border any countries.

https://en.wikipedia.org/wiki/List_of_countries_bordering_on_two_or_more_oceans
https://en.wikipedia.org/wiki/Southern_Ocean#Geography