Last name Lockhart (Lockhart 
, Локхарт 
, ロックハート) , globally, is a common family name. The family name Lockhart is characteristic of Latin America and the Caribbean, particularly Bahamas, where it is a common surname, Dominica, where it is quite a common surname, and Saint Vincent and the Grenadines (explore the name in all countries). Measured by absolute frequency, this name is the most popular in the United States, the United Kingdom, and Canada.
| VARIANT | COUNTRY |
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| Lockhart | Australia, Canada, United States, New Zealand, United Kingdom |
| Локхарт | Ukraine, Russia |
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william lockhart English diplomat, GB (b. 1621) |
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george lockhart Scottish writer, spy and politician (b. 1673) |
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| george lockhart Scottish advocate, judge and commissioner to parliament (b. 1630) |
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| philadelphia lockhart (b. 1655) |
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| philip lockhart Scottish army officer and Jacobite (b. 1689) |
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| george lockhart, 3rd of carnwath (1700-1764) (b. 1700) |
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| alexander lockhart, lord covington 18th-century Scottish lawyer (b. 1700) |
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| euphemia lockhart (1702-1762) (b. 1702) |
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| jacob lockhart Scottish officer active in Austria (1718-1790), GB (b. 1718) |
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| james lockhart Scottish aristocrat, GB (b. 1727) |
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| lockhart gordon (1732-1788), IN (b. 1732) |
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| thomas lockhart politician (b. 1739) |
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| lockhart elphinstone (1743-1748) (b. 1743) |
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john gibson lockhart Scottish writer and editor, GB (b. 1794) |
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| charles lockhart British musician, GB (b. 1745) |
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