András Keller (born 1960) is a Hungarian violinist and a founder of the Keller Quartet. He also works as a director and conductor of Concerto Budapest. At the age of 7, Keller began playing the instrument and seven years later was admitted to the Liszt Academy of Music, where his teachers were Dénes Kovács, György Kurtág, and Ferenc Rados. Later, he was also studying from Sándor Végh in Salzburg. He was the artistic director of the Arcus Temporum Festival between 2004 and 2009 and has been holding to this position again since 2016.