Cognomen Mclaggan (Mclaggan 
) , in all the world, is a rare last name. The cognomen Mclaggan is habitual in New Zealand, where it is a rare surname, the United Kingdom, and Australia. In absolute terms, this name is the most popular in the United Kingdom, the United States, and South Africa.
| VARIANT | COUNTRY |
|---|---|
| Mclaggan | United Kingdom, South Africa, Australia, United States, Canada |
| stu mclaggan New Zealand cricketer, NZ (b. 1945) |
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| john mclaggan UK election candidate |
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Mr, Ruby, Ryan, Greg, Lara, Lisa, Jane, John, Jenn, Jean, Rory, June, Troy, Neil, Fern, Iain, Will, Marie, Sarah, Susan, Steve, Jill, Rose, Paul, Kyle, Ms, Ty, Sam, Sue, Amy, Ken, Rob, Ron, Les, Joy, Jim, Ian, Wes, W A, Mary, Mark, Sean, Alex, Anne, Cody, Kent, Scott, and Angus