WHNT-TV (channel 19) is a television station in Huntsville, Alabama, United States, affiliated with CBS. It is owned by Nexstar Media Group alongside Florence-licensed CW owned-and-operated station WHDF (channel 15). The two stations share studios on Holmes Avenue Northwest in downtown Huntsville; WHNT-TV's transmitter is located on Monte Sano Mountain. The station also operates three news bureaus: Decatur, Sand Mountain (Albertville), and Shoals (Florence).

WHNT began operations on Thanksgiving Day, November 28, 1963 (the first new station to be launched after President John F. Kennedy was assassinated). It has been a CBS affiliate for its entire existence, and is the only Huntsville-area station to have never changed its affiliation. The Federal Communications Commission (FCC) originally licensed the frequency for WHNT to the city of Fort Payne some 40 miles (64 km) to the southeast. The station was founded by a former employee of Birmingham station WAPI (now WVTM), Charles Grisham, now deceased, who later added two other Southern stations, WSLA in Selma, Alabama, and WYEA in Columbus, Georgia, to his portfolio.

WHNT-TV first used 16 mm film for most of its commercial and news gathering. In 1979, it switched to the 3⁄4-inch video tape format. WHNT used this system until 1998 when new Panasonic DVC machines and cameras were purchased.

In 1980, Grisham sold WHNT to The New York Times Company, which operated it for over a quarter century and the third station owned by their broadcasting division. WHNT's facilities were moved from Monte Sano Mountain to downtown Huntsville in 1987. The move was prompted by a fire that destroyed rival WAFF-TV (channel 48)'s studios, then on Governors Drive, five years earlier. The transmitter and tower remain on Monte Sano because the mountain provides the highest elevation in the immediate area; backup broadcast capabilities for news also remain at the Monte Sano site for use during an emergency.

WHNT is the only major station in Huntsville to operate from a facility actually constructed specifically for broadcasting purposes. WAAY-TV (channel 31) operates from a former gas station, WAFF-TV from a former jewelry store, and WZDX (channel 54) from an office building. In 2003, WHNT allowed competing stations WAAY and WZDX to use space on its tower after both stations' towers used on WAAY's property collapsed, killing three men.

In September 2006, The New York Times Company announced that it would put its nine television stations, including WHNT, up for sale. On January 4, 2007, the company sold its television stations in a group deal to Local TV, a holding company operated by private equity group Oak Hill Capital Partners, for $530 million; the sale was finalized on May 7.

In October 2010, the station stopped using videotape. All cameras now record on digital memory cards and video playback for all newscasts comes off a digital server. WHNT's archives, the most extensive in Huntsville television, go back to 1973 and include a mix of film and videotape. The film library had been stored at the University of North Alabama in Florence, but has recently been returned to Huntsville. On July 1, 2013, the Tribune Company (which formed a management company that operated both its own television stations and those owned by Local TV in 2008) acquired the Local TV stations for $2.75 billion; the sale was completed on December 27.

Sinclair Broadcast Group entered into an agreement to acquire Tribune Media on May 8, 2017, for $3.9 billion, plus the assumption of $2.7 billion in Tribune debt. The deal received significant scrutiny over Sinclair's forthrightness in its applications to sell certain conflict properties, prompting the FCC to designate it for hearing and leading Tribune to terminate the deal and sue Sinclair for breach of contract.