Throughout the world, Mattingly (Mattingly 
) is a very rare unisex first name. The first name Mattingly is habitual in Northern America, particularly the United States, where it is an extremely rare gender-neutral name. Predominantly, Mattingly is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Mattingly | Japan, United Kingdom, Australia, United States, Canada |
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mack mattingly American politician, US (b. 1931) |
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| hedley mattingly British actor (1915-1998), GB (b. 1915) |
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| nace mattingly racecar driver from Maryland (1921-2000), US (b. 1921) |
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| dudley mattingly Australian rules footballer (1928-1996), AU (b. 1928) |
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| brien mattingly college basketball player (2003–2004) Colorado |
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| jameson k mattingly researcher |
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| marshall mattingly Ph.D. University of Utah 1998 |
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