Rebans are fan-fiction set in the Perry Rhodan universe.

The Räb-System is home to the Rebans, a peaceful alien race resembling upright walking bears. Their civilization has a rich history marked by technological advancements and a commitment to non-violence.

The system has 10 planets, with Icin being the homeworld of the Rebans. Other notable planets include Leysahm and Lorvabee. Icin has two moons named Bobo and Tarsch. The Räb-System is 1426 light years from Earth.

The Rebans made their first space flight in 2004, followed by landings on Bobo and Tarsch. They developed ion-engine technology, explored the asteroid belt, and established colonies on other planets. The probe Uku-quina was sent to the Päft-System, and the first interstellar ship, Uur-Ija, was constructed. The Rebans were discovered by the Terranian Explorer EX-1 in 2127.

The Rebans have adopted human space flight technology and developed their own faster-than-light capabilities.