Yes, dogs can have cashews, and cashews are generally safe for dogs to eat. However, they should be given in moderation and ideally unsalted and without added oils or seasonings. Cashews are high in fat and protein, which can pose health risks such as pancreatitis or obesity if consumed in large amounts. It's best to avoid giving cashews frequently or in large quantities, especially for dogs with specific health conditions. Cashews can also be a choking hazard, particularly for small dogs, so they should be given in small pieces or as cashew butter. Always consult a veterinarian before introducing new treats like cashews to a dog's diet.