The award recognises outstanding politicians and diplomats who represent civilian interests at the highest level in areas of policy, social and business.
As MP for Burton upon Trent, which is often named the home of British brewing, and chairman of the All-Party Parliamentary Beer Group, Griffiths has been the leading spokesman for beer and brewing in Parliament and led the successful campaign to scrap the beer duty escalator in 2013 and cut duty on beer in 2013 and 2014.
Griffiths also helped to campaign for a cut in business rates for pubs and organised an initiative for other MPs to spend a shift working behind the bar in their local so they could experience the challenge faced by pubs.
Talyn Rahman-Figueroa, executive director of Grassroot Diplomat, said: “All too often, we hear stories of our governments not representing our needs but Grassroot Diplomat looks upon selfless individuals who work tirelessly for their communities.
“The award seeks to create a culture of positive role models within our governments which encourages others in power to follow suit.”
The winners will be announced at an awards ceremony will take place in London on 5 March.