- Jacobi-Trudi identity
- Jacobi-type bar
- Jacobi variety
- Jacobi vector field
- Jacobi zeta-function
- Jacob Jensen
- Jacob Levy Moreno
- Jacob Ludwig Carl Grimm
- Jacob number
- Jacob Obrecht
- Jacob Palis
- Jacobsen Katsuki epoxidation
- Jacobsen-Katsuki epoxidation
- Jacobs externality
- Jacobson
- Jacobson-Bourbaki correspondence
- Jacobson-Bourbaki one-to-one correspondence
- Jacobson-Bourbaki theorem
- Jacobson canonical form
- Jacobson category
- Jacobson radical
- Jacobson ring
- Jacobson scheme
- Jacobson's density theorem
- Jacobson topology