Lessons learned are experiences distilled from a project that should be actively taken into account in future projects.

Lessons learned may also refer to:

Music Lessons Learned (album), an album by Tracy Lawrence

Songs "Lessons Learned", by Tracy Lawrence from that album "Lessons Learned", from Grand (Matt & Kim album) "Lessons Learned", by Carrie Underwood: On her album Some Hearts On Kristin Chenoweth album Some Lessons Learned

Project management Military practice: The "military lessons of the American Civil War" in Memoirs of General William T. Sherman By Himself (1875) U.S. Army Center for Army Lessons Learned (since 1985) NATO Joint Analysis and Lessons Learned Centre (since 2002) Lessons Learned or lessons learned, postmortem documentation

See also Lessons Learned (film) "Lesson Learned", a song by Alice in Chains Lessons to Be Learned, album by Gabriella Cilmi "Lesson Learned", a song by Alicia Keys and John Mayer from As I Am