Cornish MP Andrew George has said he was "just doing his job" after being nominated for Backbencher of the Year in an annual award from the Westminster corridors of power.
The St Ives Liberal Democrat has been shortlisted for Backbencher of the Year in the scheme run by The House magazine.
Mr George, a member of the influential Health Select Committee who has frequently stood up to the Government over their controversial reforms to the NHS, said he was delighted.
He added that though he was sometimes labelled as rebellious, he was just doing what he had been elected for.
"I'm just getting on with the job of holding the Government to account," said Mr George.
"I realise that sometimes means I'm a thorn in their side, but just because I sit on the Government benches, it doesn't mean to say that I should be uncritical.
"I know I've been highlighted as the most rebellious MP.
"But I don't see this as either a badge of shame or of pride – I'm just doing my job."
The results, which will be voted on by members of the Commons and the Lords, will be revealed next month.
"I realise I stand no chance of winning the award – Parliamentary arithmetic at the very least is against it," he added.
"It's a surprise and an honour to find myself on the nomination shortlist.
"That is honour enough for me. I am grateful to whoever proposed my nomination."