| Dimacrodon Temporal range: Early Permian
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| Illustration showing known material and reconstructed outline of the skull | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Synapsida |
| Clade: | incertae sedis |
| Family: | †Dimacrodontidae Olson & Beerbower, 1953 |
| Genus: | †Dimacrodon Olson & Beerbower, 1953 |
| Species: | †D. hottoni
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| Binomial name | |
| †Dimacrodon hottoni Olson & Beerbower, 1953
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Dimacrodon is an extinct genus of non-mammalian synapsid from the latest Early Permian San Angelo Formation of Texas. It is distinguished by toothless, possibly beaked jaw tips, large lower canines and a thin bony crest on top of its head. Previously thought to be an anomodont therapsid related to dicynodonts, it was later found to lack any diagnostic features of anomodonts or even therapsids and instead appears to be a 'pelycosaur'-grade synapsid of uncertain classification.