Yōzan Dirk W. Mosig (born 1943) is a psychologist, historian, literary critic and ordained Zen monk noted for his critical work on H. P. Lovecraft. He was born in Germany and lived for several years in Argentina before emigrating to the United States. He received his Ph.D at the University of Florida in 1974. Between 1973 and 1978, Mosig published numerous important essays assessing Lovecraft's work. S. T. Joshi has stated that "Dirk Mosig is the key transitional figure in Lovecraft studies; and if the history of this field is ever written, he will have to occupy a central role."