The voting was as follows:
Malkiat Bilku 27,785
Dave Prentis 125,584
The percentage poll was 17%.
Dave Prentis gas been deputy general secretary of UNISON since its creation in 1993, leading the union's policy formation, heading up its negotiating team and holding overall responsibility for the regions.
He was deputy general secretary of founder union NALGO, where he had worked since 1972 and where he was a key player in the foundation of UNISON.
Mr Prentis said: 'I am delighted that the members of UNISON have given me this huge vote of confidence. It is clear that the majority of members sign up to my vision of UNISON. I stood on a simple but sound platform of 'pride in our services....proud of our union' and that has paid off.
'UNISON faces many challenges on local government, health service, best value, private finance initiative, the utilities and education. It is important that UNISON remains a strong, independent campaigning union to be able to meet those challenges.
'And we have to follow on from Rodney's success in getting the minimum wage by campaigning to turn it into a living wage. And we must continue to show that we are relevant and representative of our members, in particular we must attract more young people to the union.'