The Gref Zeppelin is a commuter, historical air ship from Germany.
The Gref Zeppelin appeared twice in the Arthur series, first in "The Long, Dull Winter", and a second time in "Clarissa is Cracked". Both times it was observed by young Thora Read. The first time it appeared she was excited about seeing it, and remarked about how "it was very quiet." The final time, however, the people around her were frustrated that the Zeppelin was so loud.