WGEM-TV (channel 10) is a television station licensed to Quincy, Illinois, United States, serving the Quincy, Illinois–Hannibal, Missouri–Keokuk, Iowa market as an affiliate of NBC, The CW Plus, and Fox. Owned by Gray Media, it is sister to the company's sole radio property, sports station WGEM-FM (105.1). The two stations share studios in the New Tremont Apartments (formerly the Hotel Quincy) on Hampshire Street in downtown Quincy. WGEM-TV's transmitter is located east of the city on Cannonball Road near I-172.

Until August 2, 2021, WGEM-TV served as the flagship television property of founding owner Quincy Media, and was sister to the company's namesake newspaper, The Quincy Herald-Whig.

WGEM-TV's license was originally granted to Quincy Broadcasting Company, a subsidiary of the Herald-Whig; it was allotted channel 10. The station was originally affiliated with NBC and ABC, while being represented by Walker Representation Co. Quincy Broadcasting's president at the time was T. C. Oakley; Joe Bonansinga was the station's founding general manager. The station received their DuMont transmitters on the same truck as nearby KHQA-TV (channel 7) on July 27, 1953. The crews competed to see who could get on the air first. WGEM began interim broadcasting two hours per night on September 4, 1953.

During the 1960s, WGEM shared its secondary ABC affiliation with CBS affiliate KHQA-TV. This arrangement ended in 1969, when WJJY-TV in Jacksonville, Illinois, went on the air as the ABC affiliate for Quincy; when WJJY went bankrupt and shut down in 1971, WGEM resumed carrying a few ABC shows until the mid-1990s. The station also had a secondary affiliation with Fox between 1990 and 1994, after which the station moved its Fox affiliation to a separate cable-only channel.

Until 2021, WGEM-TV was the only locally owned and operated station in the market. It was also one of the few and longest operating television stations in the country, outside of network owned-and-operated stations, that had the same call letters, owner, channel number, and primary network affiliation throughout its history.

Since the mid-to-late 1990s, WGEM has branded almost exclusively with its call letters.

On February 1, 2021, Gray Television announced that it had entered into an agreement to acquire most of Quincy Media's television properties for $925 million in a cash transaction. The acquisition was completed on August 2, resulting in the first ownership change for WGEM-TV since its 1953 sign-on.

WGEM-DT2 is the CW+-affiliated second digital subchannel of WGEM-TV, broadcasting in 720p high definition on channel 10.2.