Kadhimi, director of Iraq's National Intelligence Service, met with top members of the outgoing government on Saturday in a bid to put together his cabinet and bring an end to a long-lasting power vacuum.
On Thursday, President Barham Salih named Kadhimi, who enjoys support from the country's political establishment, as prime minister-designate and tasked him with forming a new government in a month.
He was the third person tapped for the job in just 10 weeks after the former nominee Adnan al-Zurfi withdrew his bid.
Iran welcomed Kadhimi’s nomination for the Iraqi premiership, calling the move a step in the right direction.