Senior Ukrainian MP Oleksiy Goncharenko, seen as a future Prime Minister or President himself in the future, is the latest to add his voice to the growing calls for the special role for Mr Johnson.
He told Express.co.uk: “Thanks again to Prime Minister Johnson for his leadership in support of Ukraine.
“It would be great to see him after resignation from No10 as G7 Special envoy on Russian invasion. It’s important for both the UK and Ukraine.”
The idea was first proposed by an ally of Foreign Secretary Liz Truss’s leadership campaign, Professor Gwythian Prins in an article he wrote for Express.co.uk.