"Honesty" is a song by American singer-songwriter Billy Joel, released by Columbia Records as the third US single from his sixth studio album 52nd Street (1978) in 1979. "Honesty" was solely written by Joel, while production was handled by Phil Ramone. The song appears on the Dutch and Japanese editions of Greatest Hits Volume 2, replacing "Don't Ask Me Why" (1980).

The song received mostly positive reviews from music critics, who generally praised its lyrics and piano instrumentation. It also received comparisons to other songs by Joel. "Honesty" peaked at number 24 on the US Billboard Hot 100 chart, becoming the album's third consecutive top 40 hit. It went to Number 1 in France and has also been certified gold by Recording Industry Association of Japan for ringtone download sales of over 100,000 units.