Family name Mcneff (Mcneff 
) , around the globe, is a rare last name. The family name Mcneff is habitual in the United States, where it is a rare surname, New Zealand, where it is a very rare surname, and the United Kingdom. Not in comparison with a country's population, it is the most numerous in the United States, the United Kingdom, and Canada.
| VARIANT | COUNTRY |
|---|---|
| Mcneff | United Kingdom, Thailand, United States, Canada, New Zealand |
| stephen mcneff Northern Irish composer, IE (b. 1951) |
|