Elias Nikolaus Ammerbach was a German organist and arranger of organ music of the Renaissance. He published the earliest printed book of organ music in Germany and is grouped among the composers known as the Colorists.
He was born in Naumburg, educated at the University of Leipzig (1548–49), and was afterwards employed as organist at the Thomaskirche in Leipzig, probably for the rest of his life. He was married three times (his first two wives died). According to the preface of his 1571 publication of organ tablature he traveled to foreign lands to study, but he gave no specifics.