Eller and Eler is a German and Estonian surname. It is the surname of the following people:
Allen Eller (1976–2016), American soccer player Are Eller (born 1947), Estonian sports journalist and rower August Eller (1907–1990), Estonian chess player Carl Eller (born 1942), American football player Cássia Eller (1962–2001), Brazilian musician Curtis Eller (born 1970), American banjo player and musician Ernest M. Eller (1903–1995), American rear admiral Fabiano Eller (born 1977), Brazilian footballer Hans Eller (1910–1943), German rower Heino Eller (1887–1970), Estonian composer Hillar Eller (1939–2010), Estonian politician Hod Eller (1891–1961), American baseball player Johann Theodor Eller (1689–1760), Prussian physician chemist John Eller (1883–1967), American athlete Kalle Eller (1940–2023), Estonian poet, publisher, neopagan and writer Karl Eller (1928–2019), American entrepreneur from Arizona Lars Eller (born 1989), Danish ice hockey player Marlin Eller, American programmer Thomas Eller (born 1964), German artist and writer Vernard Eller (1927–2007), American author Walton Eller (born 1982), American trap shooter