From 1 September, Mid Yorkshire Hospitals NHS Trust, which runs Pinderfields, Dewsbury and Pontefract Hospitals, will charge blue badge holders up to £2.80 to park
The trust, which has a £14.8m deficit, said the fee would raise £98,000 a year towards improving parking provision.
Sue Bott, Deputy Chief Executive at Disability Rights UK, said: "I'm not really in favour of anyone having to pay to park at hospitals... but imposing a charge on disabled people is really going to have a bad effect.
"The lack of funding in the NHS is a national issue and is going to need a national solution and I do not think that this penny-pinching and upsetting local people and making it difficult for disabled people to get to hospital is really the right way."