ABS-CBN (an initialism of its two predecessors' names, Alto Broadcasting System and Chronicle Broadcasting Network) is a Philippine commercial broadcast network (composed of television through terrestrial, cable or satellite, radio and new media through streaming media, internet or online) and syndication, program distributor, and production company (operating primarily under the name ABS-CBN Entertainment) that serves as the flagship property of ABS-CBN Corporation, a company under the Lopez Group. It formerly operated as a free-to-air television network. The network is headquartered at the ABS-CBN Broadcasting Center in Quezon City, with additional offices and production facilities in 25 major cities including Baguio, Naga, Bacolod, Iloilo, Cebu, and Davao. ABS-CBN's production and post-production facility is located at the Horizon IT Park in San Jose del Monte, Bulacan which opened in 2018. ABS-CBN is colloquially referred to as the Kapamilya Network; this branding was originally introduced in 1999 and was officially introduced in 2003 during the celebration of its 50th anniversary. ABS-CBN is the largest media company in the country in terms of assets, manpower, and international coverage. As of 2020, the terrestrial broadcasting operations of the network is indefinitely suspended due to lack of license and franchise, but broadcasting activities continued via online, cable and satellite, streaming platforms, and other free-to-air terrestrial television (through blocktime with A2Z and TV5).

ABS-CBN is the first and oldest television broadcaster in Southeast Asia and one of the oldest commercial television broadcasters in Asia. It has also been the leading television network in the Philippines with advertising revenues of 21.2 billion pesos for the fiscal year of 2015. ABS-CBN's very first-ever television broadcast was on October 23, 1953, as Alto Broadcasting System (ABS) on DZAQ-TV, just 3 months after the first broadcast of Japan's NHK General TV and Nippon Television. It is also the first television network in Southeast Asia to broadcast in color, the first television network in the Philippines to formally launch a digital terrestrial television service, and the first broadcast television network in the Philippines to formally launch in HD.

The flagship television station of ABS-CBN is DWWX-TV (ABS-CBN TV-2 Manila). As such, the network is also referred to informally as Channel 2 or Dos (sometimes used in the Filipino language to mean the number two) even if the network is seen in other channel numbers elsewhere in the country. The network operates across the Philippine archipelago through the ABS-CBN Regional division which controls 80 television stations. Its programs are also available outside the Philippines through the global subscription television channel The Filipino Channel (TFC) which is available in over three million paying households worldwide as well as terrestrially in Guam through KEQI-LD. Since 2011, the network has been on test broadcast for digital terrestrial television using the Japanese standard ISDB-T in select areas in the Philippines. It also partnered with KANTAR Media Inc. the ratings provider of ABS-CBN and other media entity. On October 3, 2015, ABS-CBN started to broadcast in high-definition through its affiliate direct-to-home cable and satellite television providers.

ABS-CBN was issued a cease-and-desist order by the National Telecommunications Commission (NTC) and Solicitor General Jose Calida on May 5, 2020, after the NTC refused to renew the network's franchise license earlier in February 2020. The franchise license expired on May 4, 2020, and a day later, ABS-CBN officially signed off in the evening. Kapamilya Channel was then set up as a replacement for its main terrestrial channel which can only be viewed via cable, satellite and online. A web-based channel Kapamilya Online Live was also set up to exclusively livestream some of its contents to online video-sharing platforms Facebook and YouTube.

On October 10, 2020, A2Z Channel 11 was launched as the network's temporary terrestrial channel space through a blocktime agreement between ABS-CBN Corporation and ZOE Broadcasting Network. Some of the ABS-CBN Entertainment programs are being shown on TV5 starting January 24, 2021.

As of June 30, 2021, the ABS-CBN Entertainment YouTube channel is currently the most-subscribed and most-viewed channel in Southeast Asia with 35 million subscribers and 44.1 billion views, surpassing Thailand's Workpoint TV.