- jongmyo shrine
- Joni Skiftesvik
- Jon Kolko
- Jonquière function
- Jonquière group
- Jonquière relation
- Jonquières
- Jonquière theorem
- Jonquière transformation
- Jon Stewart
- Jon Thorlaksson
- Jon Vickers
- Joomart Bokonbaev
- Joong Ang Ilbo
- Joon Haste
- Joost van den Vondel
- Jo Ractliffe
- Jordan
- Jordan algebra
- Jordan arc
- Jordan basis
- Jordan block
- Jordan-Brouwer separation theorem
- Jordan canonical criteria
- Jordan canonical form