Ironwood is a common name for a large number of woods that have a reputation for hardness. Usage of the name may (or may not) include the tree that yields this wood. Some of the species involved are:

• Acacia estrophiolata, Southern ironwood
• Androstachys johnsonii, Lebombo ironwood
• Carpinus caroliniana, American hornbeam
• Caesalpinia ferrea, Brazilian ironwood
• Casuarina equisetifolia, Beach ironwood, native to Australia
• Casuarinaceae, she-oaks in general
• Chionanthus foveolatus, Pock ironwood, native to South Africa
• Choricarpia subargentea, Giant ironwood
• Copaifera spp., Diesel tree, Kerosene tree, Kupa'y, Cabismo, or Copaúva
• Cynometra alexandri, Uganda ironwood
• Diospyros blancoi, Mabolo, Velvet apple or Kamagong, native to the Philippines
• Erythrophleum chlorostachys, Cooktown ironwood, native to Australia
• Eusideroxylon zwageri, Borneo ironwood
• Guaiacum officinale, Lignum vitae
• Guaiacum sanctum, Holywood
• Holodiscus discolor, Ocean spray or Creambrush
• Hopea odorata, White thingan, Ceylon or Malabar ironwood
• Krugiodendron ferreum, Black ironwood
• Lophira alata, Red ironwood
• Lyonothamnus floribundus, Catalina ironwood
• Mesua ferrea, Rose chestnut or Ceylon ironwood or Nahar
• Nestegis apetala, Coastal maire, Broad-leaved maire or ironwood
• Olea spp., various olive trees
• Olneya tesota, Desert ironwood
• Ostrya knowltonii, Knowlton's hophornbeam
• Ostrya virginiana, Hophornbeam
• Parrotia persica, Persian ironwood
• Pemphis acidula, Maldivian ironwood
• Sideroxylon lanuginosum, Ironwood or Gum bully
• Tabebuia serratifolia, Ipê, Brazilian walnut, Lapacho, Yellow poui
• Vepris lanceolata, White ironwood, native to South Africa
• Xanthostemon verdugonianus, Philippine ironwood or Mangkono, endemic to the Philippines
• king of kenneth, kenny or cheng, for USA