Diem may refer to:
Latin phrases
*, a Latin phrase meaning "seize the day"
*, meaning "per day"
*, a
legal term meaning "from day to day"
People
*
Diem Brown (1980–2014), American television personality and journalist
*
Carl Diem (1882–1962), originator of the Olympic torch relay
*
Ngo Dinh Diem (1901–1963), Vietnamese leader assassinated in a military coup
*
Ryan Diem
Ryan Edwin Diem (born July 1, 1979) is a former American football offensive lineman who played his entire 11-year professional career for the Indianapolis Colts of the National Football League. Diem was born in Roselle, Illinois, played colle ...
(born 1979), American football player
Other uses
*
Diem (digital currency) (2019-2022), a digital currency formerly proposed by Facebook
*
DiEM25
The Democracy in Europe Movement 2025, or DiEM25, is a pan-European political movement founded in 2016 by a group of Europeans, including former Greek Finance Minister Yanis Varoufakis and Croatian philosopher Srećko Horvat. The movement was o ...
, Democracy in Europe Movement 2025
*Diem or
Didam, a town in the Netherlands
{{Disambiguation, given name, surname
Surnames from given names