Corus Entertainment Inc. is a Canadian mass media and television production company. Formed in 1999 as a spin-off from Shaw Communications, it has prominent holdings in the radio, publishing, and television industries. Corus is headquartered at Corus Quay in Toronto, Ontario.

Corus has a large presence in Canadian broadcasting as owner of the national Global network (15 conventional stations), 36 radio stations, and a portfolio of 25 specialty television services, the company's domestic specialty brands includes Flavour Network, Home Network, Showcase, SériesPlus, Slice, Télétoon, Treehouse, W Network, and YTV. It also operates services under brand licensing agreements with A&E Networks (History, Lifetime, and Crime & Investigation), Paramount Skydance (CMT), The Walt Disney Company (Disney Channel and National Geographic), and Warner Bros. Discovery (Cartoon Network, Boomerang, and Adult Swim). It previously held rights to WBD lifestyle brands such as Food Network and HGTV (these moved to Rogers Communications in 2025) and Nickelodeon (Canadian distribution of US programming rights moved to the Canadian version of Paramount+ in 2025).

Corus also owns the animation studio Nelvana, and children's publisher Kids Can Press. The second incarnation of Shaw's media division (formed from the properties of the bankrupt Canwest Global) was subsumed by Corus on April 1, 2016, giving it control of the over-the-air Global network and 19 additional specialty channels. In May 2019, Shaw announced that it would sell its shares in Corus for roughly $500 million.

In August 1987, Shaw Communications expanded into broadcasting by acquiring two Red Deer radio stations, CIZZ-FM and CKGY-FM. Further acquisitions by Shaw during this period included CISN-FM Edmonton (1988), CHAY-FM Barrie (1990), CKDK-FM Woodstock (1991), and CFOX-FM and CKLG-AM Vancouver (1992). In 1995, it acquired CUC Broadcasting's 34% stake of YTV. Shaw acquired Rogers' remaining shares of YTV in 1998.

In September 1998, JR Shaw and Shaw Media CEO John Cassaday announced plans for Shaw to spin off its media properties—including radio stations and television specialty channels—into a new company that would be known as Corus Entertainment; the spin-off would leave Shaw as "pure play" telecommunications company. The decision was meant to comply with Canadian Radio-television and Telecommunications Commission (CRTC) recommendations that discouraged the vertical integration of broadcasters and television providers. Corus would be a separate, publicly traded company, first listed on the Toronto Stock Exchange in September 1999, but it would still be primarily controlled by the Shaw family.

In September 1999, Corus acquired the broadcasting assets of the Power Corporation of Canada, which included four television stations and sixteen radio stations. One of these stations, CHAU-TV, was later re-sold to Télé Inter-Rives. In October 1999, after a battle between Shaw and Canwest for control of the company, it was announced that Western International Communications (WIC) would be split between the two companies: Corus would acquire WIC's 12 radio stations and most of its specialty channels, including stakes in Family Channel, SuperChannel and MovieMax!.

In September 2000, after negotiations and rumoured offers by other studios, Corus announced that it would acquire the Toronto-based animation studio Nelvana for $540 million; the deal was considered to be a complement to its children's television networks (which had often acquired programming from Nelvana), including YTV, Treehouse, and its stakes in Family Channel, Teletoon, and its French counterpart Télétoon. Corus also stated that it planned to use the purchase to help launch a preschool-oriented cable network in the U.S.

In March 2001, in response to complaints by the CRTC over its near-monopoly on ownership of children's specialty channels in Canada, Corus sold its stake in Family Channel to Astral Media for $126.9 million, making it a sister channel to The Movie Network and giving them full ownership. Corus also sold its stake in the Western Canadian pay-per-view service Viewers Choice to Shaw for $22.6 million, and acquired the Women's Television Network (WTN) from Shaw (which had acquired the channel through its acquisition of cable provider Moffat Communications) for $132.6 million. In August 2002, Corus sold CKDO and CKGE-FM to Durham Radio.