WBAJ (890 kHz) is an AM radio station licensed to Blythewood, South Carolina, and serving the Columbia metropolitan area. Broadcasting under the on-air name Columbia Christian Talk Radio, WBAJ carries a Christian Talk Radio format and is licensed to Bible Clarity.

WBAJ is a daytimer station. By day, it operates at a power of 50,000 watts, using a non-directional antenna. However, because AM 890 is a clear channel frequency reserved for Class A WLS Chicago, WBAJ must sign off at night to avoid interference. During critical hours, WBAJ operates at 8,500 watts.

Programming is also heard on a 250-watt FM translator, W269DU, broadcasting at 101.7 MHz in Columbia.

On October 8, 1999, the station signed on with its Christian talk radio format and added it's translator at full power in 2019.

• Facility details for Facility ID 41504 (WBAJ) in the FCC Licensing and Management System
• WBAJ in Nielsen Audio's AM station database

34°06′31″N 81°04′28″W / 34.10861°N 81.07444°W / 34.10861; -81.07444