Cognomen Speden (Speden 
) , around the world, is a very rare last name. The cognomen Speden is characteristic of New Zealand, where it is a rare surname, Australia, where it is a very rare surname, and Canada, where it is an extremely rare surname. Measured by absolute frequency, it is the most numerous in New Zealand, Australia, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Speden | Australia, New Zealand, United States, Canada |
| james speden New Zealand horticulturalist and botanical collector, NZ (b. 1870) |
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| ian gordon speden New Zealand geologist, NZ (b. 1932) |
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| shane speden ice dancer (b. 1992) |
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