Family name Denier (Den
, Denier
, Denarius
) , throughout the world, is a common surname. The cognomen Denier is habitual in Bhutan, where it is quite a common surname, Brunei, and Netherlands, where it is quite a rare surname. Measured by absolute frequency, the name is most common in Indonesia, Pakistan, and India. Likewise, Denier is the forename as well as the last name.