Grate the cucumber and drain excess moisture using a kitchen towel.
In a mixing bowl, combine the Greek yogurt, minced garlic, and olive oil.
Add the drained cucumber to the yogurt mixture.
Stir in the white vinegar and chopped dill.
Season with salt and pepper to taste.
Mix all ingredients until well combined and creamy.
Cover the bowl with plastic wrap and refrigerate for at least 30 minutes.
Stir the sauce again before serving.
Serve chilled with grilled meats, pita bread, or vegetables.