Yes, lemon balm is generally considered safe for dogs in small amounts. As a member of the mint family, it's non-toxic to dogs. Some pet owners even use lemon balm to help calm anxious pets. However, like with any new food, introduce it gradually and watch for any adverse reactions. It's always best to consult with your veterinarian before adding new herbs to your dog's diet, especially if your pet has any existing health conditions or is on medication.