Cognomen آرنولد (Arnold 
, Arnolds 
, آرنولد) , globally, is a widespread surname. The cognomen آرنولد is characteristic of Belize, where it is a common surname, Guernsey, and Switzerland, where it is quite a common surname (explore the name in all countries). In absolute terms, the name is most common in the United States, Germany, and the United Kingdom. Likewise, آرنولد is the forename as well as the last name.