What are the most popular drinks in Greece

rakomela - it is a mix of raki with honey!

Takis7 - excellent list . I would add the beer to day drink as well.
To add to the coffee list
Different coffees
Nescafe
Frappe
Greek coffee
Cappuccino
Freddo

The above are the most popular coffees in Greece

Coffee:
The unofficial national drink is coffee. Everybody starts their day with it, have a couple of cups while working & maybe go out in the afternoon with friends to get another one.
Older people drink traditional greek coffee. Young people drink frape (iced cold nescafe), nescafe (hot) & nowdays Espresso & Fredo r very popular when u go to coffee shops. In the office most drink filter coffee or frape.
Tea is not that popular.

Soft drinks:
The usual: Coca Cola, Sprite, Pepsi, Fanta etc, u can find them everywhere & people drink it with their meals

Alcoholic drinks:
Greeks drink lots of wine, usually with dinner or at friend gatherings. When they go out to bars/clubs many drink beer (Heineken & Amstel r the more popular but u get imported beers as well like Stella, Bud etc). Also Tequila, Gin, Vodka, Whiskey (especially during the winter) etc.

The traditional spirits: Ouzo, raki, tsipouro etc r also popular especially with ''meze'' (snacks like cheese, salad, small sausages, meatballs, fish etc).

So to put them in order
Day drinks: Coffee (by far), Coca Cola, Ouzo (I know it is alcohol but it is a day drink with snacks)
Going out/party drinks: Gin, beer, Tequila, Vodka, Whiskey
Going out to dinner: Wine, beer, soft drinks
Home gatherings: wine, beer

I hope this helps.

well.i only know alcoholic greek beverages such as retsina,ouzo,raki,wine and the non alcoholic:mostly greek traditional coffee,and the soft drinks as all of us know!coke,fanta,sprite .some things do not change!!!!!!!