The Alderney Stamps were issued by the Commodore Shipping Company stamps for the small parcel service between Guernsey to Alderney in the Channel Islands.  No more stamps can be issued as the shipping contract ended 30 September 1969 with the start of the Guernsey Post Office.

In 1971, a number of 1967 G-A definitives were overprinted in red or black at the same time of the British Postal Strike [BPS] for the World Jamboree held in Japan.  These overprinted stamps had no connection with the Guernsey-Alderney Commodore Shipping service.