Currently governor of the Bank of Canada, Mr Carney will take over from Sir Mervyn King as the Bank of England's governor in July.
Ahead of taking the helm, he faces a three-hour grilling from Parliament's Treasury Select Committee on Thursday morning.
Questioning is likely to be led by how he plans to kick-start Britain's stuttering economy, with leading economists having already called for Mr Carney to offer a major rethink of policy to revive the country's growth prospects.
After taking over at the Bank of Canada in 2008, Mr Carney earned a reputation for protecting his home country from the global financial crisis and he now faces the challenge of getting Britain out of a rut of almost zero growth.
Mr Carney's various comments on policy have been seized upon as signals of what he plans to do when he takes over at the Bank of England on July 1.
"I think there will be quite a few changes," said Michael Saunders, an economist at Citi, such as a more flexible inflation target, setting clear signals on how long interest rates may remain low, more bond-buying and, possibly, a rate cut.
That kind of approach has raised eyebrows at the Bank of England. Several top officials have said it is not needed for Britain, in part because of concerns it could stoke the country's persistently above-target inflation.
Mr Carney also stirred controversy in December by saying that, in times of crisis, central banks might consider targeting a mix of inflation and growth rates instead of just inflation.
While Mr Carney speaks in Westminster, Sir Mervyn will be chairing one of the final Monetary Policy Committee meetings of his term. The MPC is not expected to expand its bond-buying programme.
But, the day before the Bank of England's monetary policy committee announces the outcome of its monthly meeting, the Chancellor put the pressure on the bank to take action, the Financial Times reported .
Mr Osborne said decisive moves by the government on the deficit "means that...monetary policy action by the BoE can and should continue to support the economy".
He was speaking at the launch of the Organisation for Economic Co-operation and Development's report on the UK economy, which said the Bank of England may need to carry out more money-printing to stimulate the economy.
The Chancellor hopes that Mr Carney will persuade the Bank to take a more active stance in supporting the recovery.