Church of God is the name (or within the name) of several Christian denominations, both within historic Christian faith and cult groups.
Notable groups with this name include the following (not all-inclusive):
- Church of God (Anderson, Indiana), a Holiness Movement denomination
- Church of God (Cleveland, Tennessee), a Pentecostal demonination
- Church of God in Christ, a Pentecostal denomination predominantly comprised of Black congregations
- Church of God with Signs Following, best known for its controversial, and dangerous, practice of open snake handling
- Worldwide Church of God, the former name of the cult founded by Herbert W. Armstrong; after his death the group renounced his teachings and changed its name to Grace Communion International
- Church of God International (United States), an offshoot of Armstrongism founded by Armstrong's estranged son Garner Ted Armstrong
- Philadelphia Church of God, an Oklahoma-based offshoot of Armstrongism known for its monthly magazine The Philadelphia Trumpet
- Restored Church of God, an Ohio-based offshoot of Armstrongism known for its pop-up ads when searching Christian topics