The Association's independent chairman, the Rt Hon. John Gummer, Lord Deben will respond to the speech.
AIFA's annual dinner will be held on 8 November at 8 Northumberland Avenue and will be sponsored by BlackRock.
Stephen Gay, Director General, AIFA, said: "I am delighted that Chris Leslie is joining us at our annual dinner as he has shown a strong interest in the rapidly changing regulatory environment that is facing our membership and has strong views on the government's economic strategy.
"Chris is ideally placed to give us an informed view on developments in Westminster, which will provide an interesting insight into the drivers for change. Our guests will also be keen to hear his thoughts on the likely future of the financial services market."
