BBC One South East is a regional television channel that broadcasts to viewers in the southeast of England. It is one of the many regional variations of BBC One, the flagship television channel of the British Broadcasting Corporation (BBC).

The channel's programming consists of a mix of national and regional content. National programs include popular BBC shows such as EastEnders, Doctor Who, and Strictly Come Dancing. The channel also broadcasts a variety of regional programs, including local news, documentaries, and entertainment shows.

BBC One South East is known for its strong commitment to local news and current affairs. The channel broadcasts a daily regional news program, South East Today, which covers news and events from across the southeast region. The channel also produces a variety of other local programming, including documentaries and features that focus on the issues and stories of the region.

In addition to its regular programming, BBC One South East also broadcasts special events and coverage of major regional events, such as the Brighton Marathon and the Royal Ascot horse racing festival.

The channel is available on Freeview, Sky, Virgin Media, and Freesat. It is also available online via the BBC iPlayer.