WACH (channel 57) is a television station in Columbia, South Carolina, United States, affiliated with the Fox network.

Owned by Sinclair Broadcast Group, the station maintains studios on Pickens Street in downtown Columbia, and its transmitter is located on Rush Road (southeast of I-20), in rural southwestern Kershaw County.

On the day FCVS closed on its purchase of channel 57, it changed the call letters to WACH (the WCCT-TV calls are presently used by a CW-affiliated station in Waterbury, Connecticut, serving the Hartford–New Haven market) and relaunched it as the market's Fox affiliate, branding as "WACH-TV 57".

At first, WACH kept Christian-oriented religious programming on weekdays from 9 a.m. to noon and from midnight to 2 a.m. per an agreement with Carolina Christian Broadcasting.

FCVS eventually bought two other stations, WKCH-TV (now WTNZ) in Knoxville, Tennessee, and WEVU-TV (now WZVN-TV) in Naples, Florida.

In March 2007, longtime 10 p.m. co-anchor and managing editor Mike Woolfolk was inducted into the Hall of Fame by Region III of the National Association of Black Journalists.

On September 28, 2009, WACH became the first television station in the Columbia market to begin broadcasting its local newscasts in 16:9 widescreen standard definition, alongside the introduction of a new graphics package.

On November 9, 2009, the station debuted a half-hour early evening newscast at 7:30 p.m. weeknights called the WACH Fox Report, which maintained an entertainment-focused format.

The WACH Fox Report was concurrently moved to 6:30 p.m. and became a more traditional newscast helmed by 10 p.m. anchors Darryl Hood and Katie Williams.

Sinclair's graphics were fully implemented throughout all of WACH's newscasts in October 2015, providing a unified brand and music to the station since the broadcasting group's acquisition.

While local inserts are prepared for the national broadcast, the station no longer has a live morning news program.