"Know by Now" is a song by English singer-songwriter Robert Palmer, released in August 1994 by EMI as the second single from the singer's twelfth studio album, Honey (1994). The song was written by Palmer and co-produced by Palmer alongside Stephen Hague. "Know by Now" reached number 25 in the UK Singles Chart and remained in the top 100 for five weeks.

Robert Allen Palmer was an English singer and songwriter. He was known for his powerful, soulful voice and sartorial elegance, and his stylistic explorations, combining soul, funk, jazz, rock, pop, reggae, and blues. Over his four-decade career, Palmer is perhaps best known for the song "Addicted to Love" and its accompanying video, which came to "epitomise the glamour and excesses of the 1980s".