74 per cent of public service workers would vote for a political party or candidate committed to trialing a four-day work week.
The research, included in Fórsa Trade Union's general election manifesto, shows pay increases, remote working, and housing are top priorities for its members.
It is calling on the next government to introduce pay increases which go beyond rates of inflation.
Fórsa policy and research officer, Aisling Cusack, said the findings of the study were not surprising.
"We asked people what they want, what they're struggling with, what their challenges are and the cost of living has come back as the real challenge," she said.
"The public sector is, I suppose, a representation of society, so what we're hearing from people all around the country, we're going to hear from our members as well, because it's an accurate reflection of the representation of the country."
