Tim Hortons (TSX:THI) was voted fifth-best overall in the "quick refreshment" category.
The Oakville, Ont.,-based chain held the same spot for "top decor" and "top service," too.
Tim Hortons ranked behind Culver's, Peet's Coffee/Tea, Rita's Italian Ice and Caribou Coffee.
Tim Hortons has some 3,300 outlets in Canada and 734 in the United States.
It had revenues of $2.9 billion last year.
Zagat, behind the popular restaurant review books known as the "burgundy bible," surveyed more than 10,500 diners on 274 restaurant chains.
Zagat was acquired by Google last year.