• Carnegia accepted as Carnegiea N.L. Britton & J.N. Rose, 1908 [Class: Magnoliopsida, Family: Cactaceae]
• Carnegia Girty, 1907 † accepted as Carnegiea Girty in Willis, 1913 † [Class: Demospongea, Family: ]
• Carnegia Holland, 1896 [Class: Insecta, Family: Saturniidae]
• Carnegia Pantocsek, 1912 † [Class: Chrysophyceae, Family: Chrysostomataceae]
• Carnegia gigantea (Engelm.) Britt. & Rose
• Carnegia impar Aurivillius, 1899
• Carnegia mirabilis Aurivillius, 1895
• Carnegia mirabilis Holland, 1896