The singer had recently composed a special song for Buhari titled 'Sai Baba', in which he endorsed the President's second term bid.
The Personal Assistant to the President on New Media, Bashir Ahmad, announced the meeting on Twitter.
Although the details of their meeting was not disclosed, K1 is a known supporter of the All Progressives Congress (APC) and the Buhari administration.
He had recently endorsed the President's 2019 re-election bid at a recent event in Lagos. The singer composed a special song titled 'Sai Baba' in which he showered praises on Buhari and mocked his critics.