The international Journal of Nonlinear Mathematical Physics is a mathematical journal devoted to the publication of research papers concerned with the description, solution, and applications of nonlinear problems in physics and mathematics. The main subjects are:

- Nonlinear Equations of Mathematical Physics
- Quantum Algebras and Integrability
- Applications of Lie Group Theory and Lie Algebras
- Non-Commutative Geometry
- Super Geometry and Super Integrable System
- Integrability and Nonintegrability, Painleve Analysis
- Spectral Theory and Inverse Spectral Theory
- Geometry of Soliton Equations and Applications of Twistor Theory
- Deformation and Geometric Quantization
- Instanton, Monopoles and Gauge Theory
- Differential Geometry and Mathematical Physics