Cognomen מונטפורט (Mountfort 
, מונטפורט 
) , across the world, is a rare family name. The surname מונטפורט is habitual in New Zealand, where it is quite a rare surname, Australia, where it is a rare surname, and the United Kingdom. Not in comparison with a country's population, it is commonest in the United Kingdom, the United States, and New Zealand.
| VARIANT | COUNTRY |
|---|---|
| Mountfort | Australia, United States, New Zealand, United Kingdom, South Africa |
| מונטפורט | Israel |