"While the Giants battle it out for the top spot in the National League standings, AT&T Park's vegetarian concessions have sent the stadium soaring into first place in PETA's national ranking," PETA associate director Ryan Huling said in a statement.
AT&T Park previously held PETA's top spot in 2011, 2006 and 2005.
The vegetarian-friendly cuisine available at the park includes meat-free frankfurters and artisan burgers by Field Roast, vegetable pot stickers, the Cha Cha Bowl containing rice, beans, veggies and pineapple salsa, tacos and burritos, baked potatoes with grilled veggies, and mushroom sandwiches.
The Giants will receive a framed certificate from PETA. The group's Top 10 rankings of MLB ballparks can be found here.