India

You would be forgiven for not including India in your answer when asked who the biggest whisky nation in the world is, but on consumption level, that award goes to India. The subcontinental nation is no slouch when it comes to producing its own spirits too, though the mashbill for the whiskies are largely derived from molasses (meaning they aren't technically whiskies under EU law), India remains one of the most passionate regions for exceptional whisky.