Last name ハルファン (Khalfan 
, ハルファン) , all over the world, is a common cognomen. The cognomen ハルファン is habitual in Bahrain, where it is quite a common surname, Oman, and Tanzania (explore the name in all countries). In absolute terms, the name is most common in Tanzania, Oman, and United Arab Emirates. Likewise, ハルファン is the forename as well as the last name.