Red gum applies to any of several Australian trees including:

• Angophora costata, Sydney red gum
• Corymbia calophylla, red gum or marri, native to Western Australia
• Corymbia ficifolia, red-flowering gum
• Eucalyptus ammophila, sandplain red gum
• Eucalyptus bancroftii, Bancroft's red gum
• Eucalyptus blakelyi, Blakely's red gum, forest red gum, white budded red gum or hill red gum
• Eucalyptus brassiana, Cape York red gum
• Eucalyptus camaldulensis, river red gum
• Eucalyptus chloroclada, Baradine red gum
• Eucalyptus dealbata, hill red gum, tumble-down red gum
• Eucalyptus dwyeri, Dwyer's red gum
• Eucalyptus glaucina, slaty red gum
• Eucalyptus lane-poolei, red-freckled gum
• Eucalyptus macrorhyncha, red gum, red stringybark, Cannon's stringybark or Capertee stringybark
• Eucalyptus mannifera, red spotted gum
• Eucalyptus nandewarica, Eucalyptus flindersii, Eucalyptus gillenii, mallee red gum
• Eucalyptus parramattensis, Parramatta red gum
• Eucalyptus seeana, narrow-leaved red gum
• Eucalyptus tereticornis, red gum, forest red gum or red irongum
• Eucalyptus vicina, Manara Hills red gum