"Peace of Mind" is a song by American rock band Boston, written by Tom Scholz, the band's founder, lead guitarist and primary songwriter. It released on their 1976 self-titled debut, and released again the next year as the third and final single from the album. It peaked at number 38 on the U.S. Billboard Hot 100 in 1977, as well as number 33 on the Cash Box Top 100. It received substantial radio airplay, both upon the initial release of the Boston album and subsequently, and has been described as a "rock-radio staple".
