Physics of the Earth and Planetary Interiors, established in October 1967, is a biweekly peer-reviewed scientific journal published by Elsevier.

The co-editors are A. Ferreira (University College London), K. Hirose (Tokyo Institute of Technology), D. Jault (Grenoble Alpes University), and C. Michaut (Ecole normale superieure de Lyon).

The journal covers the physical and chemical processes of planetary interiors.

Topical coverage broadly encompasses planetary physics, geodesy, and geophysics.

Occasional special issues are set aside for proceedings of conferences.