E. robustus may refer to: Epigonus robustus, the robust cardinalfish, a deepwater fish species Eremurus robustus, a plant species native to the Tien Shan and Pamir Mountains in central Asia Eschrichtius robustus, the gray (or grey) whale, a baleen whale species Eudyptes robustus, the Snares penguin, Snares crested penguin or Snares Islands penguin, a penguin species from New Zealand