圭亚那地盾（英语：Guiana Shield，西班牙语：Escudo guayanés，法语：Plateau des Guyanes，荷兰语：Hoogland van Guyana，葡萄牙语：Planalto das Guianas）是南美洲板块上的3个克拉通之一。该地盾包含圭亚那、苏里南、法属圭亚那、巴西等国的部分地区。圭亚那地盾具有17亿年的历史。地盾上的最高海拔处称为圭亚那高原。圭亚那地盾也是世界上最壮观的若干瀑布的源头，如安赫尔瀑布等。

The Guiana Shield is one of the three cratons of the South American Plate. It is a 1.7 billion-year-old Precambrian geological formation in northeast South America that forms a portion of the northern coast. The higher elevations on the shield are called the Guiana Highlands, which is where the table-like mountains called tepuis are found. The Guiana Highlands are also the source of some of the world's most spectacular waterfalls such as Angel Falls, Kaieteur Falls and Kuquenan Falls.