The former Hove MP Ivor Caplin will chair the new advisory board set up by an HIV and sexual health charity.
Mr Caplin, 58, is due to chair the first meeting of the Terrence Higgins Trust’s advisory board later this month.
The former Labour MP, who still lives in Hove, has been a long-time supporter of the Terrence Higgins Trust.
He said: “Both I and the other members of this new advisory body are deeply passionate about tackling HIV transmissions, enabling people to live well with HIV and promoting good sexual health for all.
“We’re keen to use the breadth of our collective experience and expertise to benefit Terrence Higgins Trust and its beneficiaries.”
Mr Caplin, who served in Parliament from 1997 to 2005, will be expected to act as a sounding board for the charity’s bosses – along with his new colleagues – and to give advice.
The charity said that Mr Caplin’s Brighton and Hove home was “one of the cities in the UK with the highest prevalence of HIV”.
It added: “The advisory board will not have decision-making powers but will provide confidential challenge and scrutiny to the charity.”
Jonathan McShane, who chairs the board of trustees at the Terrence Higgins Trust, said: “I’m confident that this new advisory board will be of great benefit to Terrence Higgins Trust.
“We must ensure that all our decisions are in the best interests of the people the charity is here to support and in line with our strategic aims.
“The advisory board will meet twice a year and provide expert objective advice across the organisation.
“The substantial experience and knowledge of the board’s members will add valuable external perspective to the charity’s key decisions.”