Preheat an outdoor grill for medium-high heat and lightly oil the grate.
Mix the ground beef, onion, garlic, Worcestershire sauce, salt, and pepper in a bowl. Mix in the beer until absorbed by the meat mixture. Form into patties.
Cook on the preheated grill until the burgers are cooked to your desired degree of doneness, about 5 minutes per side for well done. An instant-read thermometer inserted into the center should read 160 degrees F (70 degrees C).
