The charity will sponsor the second part of the series for a total of eight episodes.
The sponsorship is part of a campaign to drive awareness of male breast cancer, a condition that is largely associated with women but affects more than 300 men in the UK each year.
During the fifth series about hedonistic plastic surgeons, Dr Christian Troy, a central character, is diagnosed with breast cancer. The drama follows his battle with the disease and treatment.
The sponsorship deal includes 1,440 seconds of prime time advertising, as well as banding, digital and PR activity.
It launches on 11 November alongside part 2 of the fifth series of Nip/Tuck.
Dr Sarah Cant, policy maker at Breakthrough Breast Cancer says the sponsorship deal “is a once in a lifetime opportunity” to bring male breast cancer to the public’s attention on prime time TV.
In August, the charity revealed a new brand identity and website as part of a new five-year strategy.