"You Make Me Feel (Mighty Real)" is a 1978 song by American disco/R&B singer Sylvester. It was written by James Wirrick and Sylvester, and released by Fantasy Records as the second single from the singer's fourth album, Step II (1978). The song was already a largely popular dance club hit in late 1978, as the B-side of his previous single "Dance (Disco Heat)", before it was officially being released in December. It rose to the number one position on the US Billboard Dance Club Songs chart. Music critic Robert Christgau has said the song is "one of those surges of sustained, stylized energy that is disco's great gift to pop music".

Sylvester James Jr., known simply as Sylvester, was an American singer-songwriter. Primarily active in the genres of disco, rhythm and blues, and soul, he was known for his flamboyant and androgynous appearance, falsetto singing voice, and hit disco singles in the late 1970s and 1980s.