艾尔半岛（英语：Eyre Peninsula）为一个位于澳大利亚南部南澳大利亚州的三角半岛，距离南澳首府城市阿德莱德700多公里。 半岛东临斯潘塞湾（Spencer Gulf），北靠高勒山脉（Gowler Ranges）而西边则是大澳大利亚湾（Great Australian Bight）。早在19世纪初，这个半岛的海岸线已经被探险家所纪录。1839年至1841年间，英国探险家爱德华·艾尔（Edward John Eyre）发现了这个半岛的一端，因此以他的名字来命名。后来探险家约翰·达克（John Charles Darke）真正发现了整个半岛后，才开始在此地创建港口及城市。

Eyre Peninsula is a triangular peninsula in South Australia. It is bounded on the east by Spencer Gulf, the west by the Great Australian Bight, and the north by the Gawler Ranges. It is named after explorer Edward John Eyre who explored parts of the region in 1839-1841. The coastline was first charted by the expeditions of Matthew Flinders in 1801-1802 and French explorer Nicolas Baudin around the same time. The region's economy is primarily agricultural, with growing aquaculture, mining and tourism sectors. The main townships are Port Lincoln in the south, Whyalla and Port Augusta at the north east, and Ceduna at the northwest.