“And the same way today, your leadership, your country’s bravery and fortitude are an inspiration to us all.
“I look forward to us discussing what more we can do to support you and your country.”
Mr Sunak also tweeted a picture of the pair hugging and said: “Welcome back.”
Mr Zelensky’s trip follows visits to Paris, Berlin and Rome and comes three months after he travelled to London for the first time since the start of the war.
Ahead of the meeting, Downing Street announced Britain will provide Ukraine with more military assistance including air defence missiles and attack drones.
The Prime Minister said: “This is a crucial moment in Ukraine’s resistance to a terrible war of aggression they did not choose or provoke.
