| Watsonella Temporal range: Cambrian Stage 2, c.
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca (?) |
| Genus: | †Watsonella Grabau, 1900 |
| Type species | |
| Watsonella crosbyi | |
| Accepted species | |
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| Synonyms | |
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Watsonella is an extinct genus of mollusc known from early (Terreneuvian) Cambrian strata. It has been hypothesized to be close to the origin of bivalves. It contains a single species, Watsonella crosbyi.
The genus is closely related to Anabarella, with which it bears many morphological similarities, including a laminar internal shell microstructure said to connect it with the early bivalves Fordilla and Pojetaia.