Mister Know It All
- Genre
- Lovers Rock, Roots Reggae
- Year
- 1996
- Album
- Private Lesson
“Mister Know It All” (1996) is a lovers rock, roots reggae recording by Gregory Isaacs (active 1968–2010). It appears on the album Private Lesson, a 3-track release. The JamaicansMusic Listen catalogue holds 747 playable Gregory Isaacs tracks.