Disabled passengers are set to benefit from accessibility improvements at Grangetown, Pontypool & New Inn, Llantwit Major and Neath train stations.
This is part of a £20m UK government fund.
The enhancements announced by the transport secretary Grant Shapps, are funded through the Access for All programme and will include new lifts, accessible toilets and customer information screens.
Commenting on the move, Shapps said: “The ability to travel easily from A to B is an essential factor for our day to day lives – but is not the reality for everyone.
“I recognise that we have much more to do, which is why we’re making 124 train stations across the country more accessible – a key part of levelling-up access for disabled people to transport and opening up opportunities for all.
Adding: “This is just the start of a much more ambitious agenda. My goal is to go much further in the years ahead to help ensure that our country’s transport system becomes one of the most accessible in the world.”
While secretary of state for Wales, Simon Hart said: “Accessible transport is vital for connecting people with work, family and friends. That is why the UK Government is committed to building a better railway for all passengers in every corner of Wales.”
The government encouraged operators, such as bus and train companies, to sign up to the Inclusive Transport Leaders Scheme, where they can work towards one of three accreditation levels by demonstrating the steps they have taken to improve the travelling experiences of disabled passengers, older people, and those with reduced mobility.