Asaph (Hebrew for "God has gathered") may refer to:
- Asaph Hall, 19th century astronomer
- Saint Asaph, first Bishop of the Diocese of Saint Asaph in Wales
- Asaph ben Berekhyah (also known as Asaph ha-Rophe; Asaph ha-Yarhoni; Asaph ha-Yehuda Asaph Iudaeus), 6th-century Jewish physician, author of the Book of Assaf
- The Diocese of Saint Asaph
- St. Asaph, a city in North Wales
- Psalms of Asaph
- Asaph (Bible), the name of several Biblical figures