Cognomen Mclysaght (Mclysaght 
) , all around the world, is a very rare last name. The family name Mclysaght is characteristic of Ireland, where it is a rare surname, Australia, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Mclysaght is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mclysaght | United Kingdom, Spain, Australia, Ireland, United States |
| emer mclysaght Irish journalist (b. 1980) |
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| aoife mclysaght Professor of Genetics |
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