Surname Mcdiarmid (Mcdiarmid 
, מקדרמיד 
) , in all the world, is quite a rare cognomen. The cognomen Mcdiarmid is characteristic of New Zealand, where it is quite a rare surname, Australia, and Canada. In absolute terms, it is commonest in the United Kingdom, the United States, and Canada.
| VARIANT | COUNTRY |
|---|---|
| Mcdiarmid | Canada, New Zealand, Australia, United States, United Kingdom |
| מקדרמיד | Israel |
Macdiarmid, Mcdermid, Макдиармид, and Мцдиармид
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archie mcdiarmid Canadian hammer thrower, CA (b. 1897) |
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jack mcdiarmid Australian rules footballer, AU (b. 1903) |
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| c. j. mcdiarmid American baseball executive, US (b. 1869) |
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| george mcdiarmid association football player (1880-1946), GB (b. 1880) |
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| john stewart mcdiarmid Canadian politician (1882-1965), CA (b. 1882) |
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ian mcdiarmid Scottish actor and stage director, GB (b. 1944) |
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| cleve mcdiarmid Australian rules footballer, AU (b. 1901) |
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| dorothy shoemaker mcdiarmid American politician, US (b. 1906) |
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| john mcdiarmid American tennis player, US (b. 1911) |
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| john b. mcdiarmid Canadian-born American classical philologist (1913-2002), CA (b. 1913) |
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| matthew mcdiarmid British writer and academic, GB (b. 1914) |
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| don mcdiarmid Canadian tennis player (b. 1915) |
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| howard mcdiarmid Canadian politician, CA (b. 1927) |
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| lucy mcdiarmid American scholar of English literature, US (b. 1947) |
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| david mcdiarmid Australian artist (1952-1995), AU (b. 1952) |
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