Which cocktails have fewest calories?

In most cocktails the mixer provides most of the calories, so cocktails consisting entirely of alcohol are your best best.

Vodka Martinis, Manhattans, and Scotch on the rocks are all good options.

Of hard alcohol, Vodka and Bourbon/Whiskey have the fewest calories.

Some drinks are less fattening than others. Pina Coladas and frozen drinks can have as many as 800 calories!

Stick to drinks without a lot of sugar or mixers, like Martinis. The purple link below lists the least caloric drinks in order.