In a mixing bowl, combine the olive oil, lemon juice, minced garlic, dried oregano, salt, black pepper, and paprika. Whisk together until well mixed.
Place the chicken breasts in a zip-top bag or shallow dish and pour the marinade over the chicken. Seal the bag or cover the dish and refrigerate for at least 30 minutes, or up to 2 hours for more flavor.
Preheat the grill to medium-high heat.
Remove the chicken from the marinade, allowing excess marinade to drip off. Discard leftover marinade.
Place the chicken on the grill. Grill the chicken for about 6-7 minutes on each side, or until the internal temperature reaches 165°F (75°C) and the juices run clear.
Once cooked, remove the chicken from the grill and let it rest for about 5 minutes before slicing or serving.
For added flavor, you can incorporate herbs like rosemary or thyme into the marinade.
Serve with grilled vegetables or a fresh salad to complement the chicken.
Leftover grilled chicken can be stored in the refrigerator for up to 3 days.