Ya Ho Wha 13, otherwise known as Ya Ho Wa 13 or Yahowha 13, is a psychedelic rock band fronted by Father Yod, spiritual leader of a religious cult/commune called the Source Family, based in Los Angeles. The band has released nine LPs of psychedelic music, with tribal drums and distorted guitars. Some were unrehearsed jam sessions and others conventional rock music.

Father Yod, or YaHoWha, born James Edward Baker, was the American cult founder and owner of one of the country's first health food restaurants, on Sunset Strip in Los Angeles. He founded a spiritual commune in the Hollywood Hills known as the Source Family. The Source Family was heavily influenced by the teachings of Yogi Bhajan and the astrological age of Aquarius. The Family practiced communal living in Southern California and later in Hawaii. He was also the frontman of the commune's experimental psychedelic rock band, Ya Ho Wha 13.