CBC Radio One Halifax (CBHA-FM) is the flagship CBC Radio One station for the Maritime provinces, broadcasting at 90.5 MHz in Halifax, Nova Scotia. Launched in 1944 as CBH on AM, it transitioned to FM in 1977 and became the main CBC station for Halifax in 1989.

The station provides a mix of local and national programming, offering news, current affairs, and cultural content. Local shows include Information Morning (Nova Scotia) and Mainstreet (Nova Scotia), while also carrying popular national CBC programs.

CBHA-FM operates several rebroadcast transmitters across Nova Scotia, extending its coverage throughout the province. The station's studios are located on Chebucto Road in Halifax, with its transmitter in Clayton Park.

As part of CBC Radio One, CBHA-FM delivers commercial-free programming, serving as a key source of news and information for listeners in Halifax and the surrounding areas. It plays a vital role in connecting Nova Scotians to local, national, and international stories.