Orange — Food safety facts
Feed with care · Cats · full breakdown on the linked food page
Flesh is safe in small amounts; the peel is hard to digest and essential oils can upset the stomach.
Short answer
Yes, a tiny piece of orange flesh is generally safe for a cat, but the peel is hard to digest and its essential oils can irritate the stomach. Offer only a small bite of the fruit without any skin. Watch for vomiting, diarrhea, or signs of stomach upset over the next few hours. If any of those symptoms appear, give your vet a call.