特里尼蒂半岛是南极洲的半岛，位于南极半岛的最北端，该半岛在1820年1月30日由英国探险家发现，长度约130公里，英国、阿根廷和智利均宣称拥有该地区的主权。

• Trinity Peninsula. Scale 1:250000 topographic map No. 5697. Institut für Angewandte Geodäsie and British Antarctic Survey, 1996.

Trinity Peninsula is the northernmost part of the Antarctic Peninsula, It extends northeastward for about 130 km (81 mi) to Cape Dubouzet from an imaginary line connecting Cape Kjellman on the north-west coast and Cape Longing on the south-east coast. Prime Head is the northernmost point of this peninsula. Some 20 kilometers southeast of Prime Head is Hope Bay with the year-round Argentinian Esperanza Base.