Thompson's Island (disambiguation)

Several islands have been named Thompson's Island:


 * Thompson's Island is a small alluvial island in the upper Allegheny River.
 * In the 18th century, Possession Island (Namibia) was also known as Thompson's Island.
 * On 25 March 1822, Lt. Commander Matthew C. Perry claimed Cayo Hueso (Key West), naming it Thompson's Island for US Secretary of the Navy Smith Thompson.
 * Thompson Island (Massachusetts) is an island in Boston Harbor.