Last name Speak (Piki 
, Speak 
, Sepik 
) , worldwide, is quite a rare cognomen. The cognomen Speak is characteristic of Lesotho, where it is quite a rare surname, Cyprus, and Estonia. Measured by absolute frequency, it most frequently occurs in the United Kingdom, Indonesia, and the United States. More frequently, Speak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Piki | United Kingdom, Zimbabwe, Indonesia, United States, India |
| Speak | United Kingdom, Indonesia, United States, Egypt, India |
| Sepik | Estonia, Indonesia, United States, India, Finland |
| cephas speak British trade union leader (b. 1872) |
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| walter speak British cricketer (1873-1943), GB (b. 1873) |
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| savannah johnson speak (b. 1868) |
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| george speak association football player (1890-1953), GB (b. 1890) |
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| geoffrey lowrey speak English educator (1924-2000), GB (b. 1924) |
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| gary speak English cricketer (born 1962), GB (b. 1962) |
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| jonathan speak Irish footballer and manager (born 1965), GB (b. 1965) |
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| nick speak English cricketer (born 1966), GB (b. 1966) |
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| jeroen speak New Zealand composer, NZ (b. 1969) |
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| rob speak British racing driver, GB (b. 1972) |
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| stephen speak archaeologist |
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| thomas speak researcher (ORCID 0000-0001-8134-5681) |
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| michael speak researcher ORCID ID = 0000-0002-0120-4107 |
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| andy speak rugby league player (b. 1980) |
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| andrew speak researcher |
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