Family name Slaney (Slaney 
, سلاني 
) , across the world, is quite a rare last name. The surname Slaney is habitual in Reunion, where it is quite a common surname, Isle of Man, where it is quite a rare surname, and Canada. In absolute terms, it is the most numerous in the United Kingdom, Canada, and the United States. Very seldom, Slaney is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Slaney | Australia, Canada, Reunion, United Kingdom, United States |
| سلاني | Algeria |
| sir stephen slaney English politician and Lord Mayor of London in 1595 (b. 1524) |
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| moreton slaney (1655-1753) (b. 1655) |
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| stephen slaney (b. 1649) |
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| moreton slaney (b. 1701) |
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robert aglionby slaney British politician (b. 1791) |
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| thomas slaney English footballer and manager (1852-1935), GB (b. 1852) |
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| m. noel slaney English painter; (1915 - 2000), GB (b. 1915) |
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| ivor slaney British composer, GB (b. 1921) |
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john slaney Canadian ice hockey player, CA (b. 1972) |
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| anthony slaney (b. 1920) |
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malcolm slaney American electrical engineer |
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| geoffrey slaney (b. 1922) |
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| geoffrey slaney GB (b. 1922) |
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hannah slaney Climber, GB (b. 1999) |
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| richard slaney British athlete, GB (b. 1956) |
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