Cognomen Trimnell (Trimnell 
) , globally, is a rare surname. The last name Trimnell is habitual in the United Kingdom, where it is a rare surname, Australia, and the United States, where it is a very rare surname. Very seldom, Trimnell is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Trimnell | Australia, Canada, United Kingdom, United States, Nigeria |
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charles trimnell British bishop (b. 1663) |
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| charles trimnell Church of England clergyman (1630–1702) (b. 1630) |
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| william trimnell English cleric (b. 1672) |
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| thomas tallis trimnell British and New Zealand composer and conductor. See obituary in NZ mail 9 September 1897, page 21., GB (b. 1827) |
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| rebecca trimnell |
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| jessica trimnell GB |
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Mr, Ruth, Ryan, Dale, Dori, Gary, Greg, Lucy, John, Jean, Paul, June, Teri, Neil, Emma, Femi, Marty, Megan, Sandi, Sarah, Simon, Toni, Kyle, Katy, Kate, Ms, May, Sue, Amy, Asa, Ron, Don, Liz, Joy, Tad, Tom, Ian, Zoe, Mary, Mark, Matt, Mike, Alex, Alan, Adam, Cody, Scott, and Arika