Diener is a morgue worker responsible for handling, moving, and cleaning the corpse.

Diener may also refer to:

People with the surname Bertha Eckstein-Diener (1874–1948), née Diener, Austrian writer also known by her pseudonym Helen Diener Carl Diener (1862–1928), Austrian geographer, geologist and palaeontologist Christian Diener (born 1993), German backstroke swimmer Drake Diener (born 1981), American professional basketball player Ed Diener (1946–2021), American psychologist, professor and author Emil Diener, Swiss bobsleigher Gottfried Diener (1926–2015), Swiss bobsleigher James Diener, American music executive and entrepreneur Joan Diener (1930–2006), American theatre actress and singer John V. Diener (1887–1937), American politician Melanie Diener (born 1967), German operatic and concert soprano Theodor Otto Diener (1921–2023), American plant pathologist Travis Diener (born 1982), American professional basketball player Verena Diener (1949–2024), Swiss politician

Other uses Diener & Diener, an architectural firm established in Basel, Switzerland

See also Marie Diener-West, American biostatistician and epidemiologist Robert Biswas-Diener (born 1972), American psychologist and author Deiner Córdoba (born 1992), Colombian footballer