Anja Orthodox (born December 24, 1964, in Warsaw) is a Polish musician, singer, songwriter and composer. She is known primarily for her many years of performances in the band Closterkeller, performing music from the borderline of rock and gothic metal. She has also collaborated with bands such as Wilki, Sweet Noise, Voo Voo, Abraxas and Ira. She is often referred to by the media as "the first lady of Polish metal and gothic".[1][2]