Surname Curtail (Curtus 
, Courtault 
, Curtail) , around the globe, is a rare family name. The surname Curtail is characteristic of France, where it is a rare surname, the United Kingdom, where it is a very rare surname, and Canada, where it is an extremely rare surname. Not in comparison with a country's population, the name is most common in France, the United States, and the United Kingdom. Likewise, Curtail is the forename as well as the last name.