Afterthought is a thought or action following a previous act.
Afterthought(s) also may refer to:
Music Afterthoughts (album), a 1985 album by Audrey Morris Afterthoughts, a 2013 album by Nosound Afterthought, an album by American hip hop producer Fat Jon "Afterthought", a song by In Fear and Faith on the 2010 album Imperial "Afterthought", a song by Disclosure on the 2015 album Caracal "Afterthought", a song by Joji & BENEE on the 2020 album Nectar "Afterthought", a song by Tame Impala on the 2025 album Deadbeat
Other uses Afterthought (film), a 2015 film Afterthoughts (retailer), a defunct American retailer
See also Epimetheus (mythology), might mean "hindsight", literally "afterthinker"