Last name Linforth (Linforth 
) , across the world, is a rare family name. The cognomen Linforth is habitual in the United Kingdom, where it is a rare surname, Australia, and New Zealand. Measured by absolute frequency, this name is the most popular in the United Kingdom, Australia, and the United States.
| VARIANT | COUNTRY |
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| Linforth | Australia, United States, United Kingdom, Romania, South Africa |
| ivan mortimer linforth American academic, US (b. 1879) |
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| frank arthur linforth (b. 1885) |
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| robert linforth researcher ORCID ID = 0000-0003-1946-6540 |
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