Mannahouse Church (formerly City Bible Church) is a non-denominational Christian megachurch located in Portland, Oregon, U.S. with four campuses.

The church started as a group of 13 people in 1951. The church grew rapidly, soon starting a Bible college, tape ministry, a Christian school and a Publishing house. In 2003, a second campus was opened in Tigard, soon followed by campuses in Vancouver, Washington and Downtown Portland and then a church they had planted in Eugene, Oregon became a campus. In 2018, the church changed its name from City Bible Church to Mannahouse Church to "better reflect the role that God has called us to in our time and culture." Mannahouse operates a music school.

Main Articles: Mannahouse Christian Academy and Portland Bible College

Mannahouse Church operates a Christian School adjacent to their Rocky Butte Campus called Mannahouse Christian Academy (formerly City Christian Schools). They also operate the Portland Bible College.

• List of the largest churches in the US
• Religion in Oregon
• Religion in Washington (state)

45°33′3″N 122°34′0″W / 45.55083°N 122.56667°W / 45.55083; -122.56667