Minamoto no Muneyuki (Japanese: 源 宗于 also 源宗于朝臣 Minamoto no Muneyuki Ason) (?-939) was an early Heianwaka poet and nobleman. He was a grandson of Emperor Kōkō.
In 894, he was reduced to being a commoner, holding a few provincial governorships. However, in 939, he was appointed as a magistrate and died shortly after.