- Jewish religion
- Jatropha stimulosus
- Jatropha urens
- Joe_Pye weed
- jewelweed
- jumping orchid
- jewel orchid
- judicial torture
- judiciary
- jumpsuit
- jeweled headdress
- jewelled headdress
- joseph black
- jawless fish
- jawless vertebrate
- john scott haldane
- john haldane
- john burdon sanderson haldane
- jaundiced
- jaundice
- jaundice of the newborn
- juvenile_onset diabetes
- Jim Crow
- jazz
- julio iglesias
- juarez
- jostle
- jolt
- jocote
- john xxiii
- jean louis charles garnier
- jean martin charcot
- jacob's ladder
- jerk off
- jerking off
- jesse louis jackson
- jesse jackson
- jactation
- jerboa
- juggernaut
- jim morrison
- jimmy carter
- jim thorpe
- jimmy doolittle
- jim corbett
- joyce
- jimmy stewart
- jimi hendrix
- jimmy hoffa
- jar against