Advances in quantum sensing offer new opportunities for geodesy and geophysics, particularly in gravity and magnetic field measurements and their applications to resilient positioning, navigation, and timing (PNT). However, translating quantum sensor capabilities into practical applications requires progress in reference-field modelling, uncertainty quantification, sensor integration, and navigation algorithms. This session invites contributions on quantum gravimetry, gravity gradiometry, quantum magnetometry, and quantum inertial sensing, with emphasis on geodetic and geophysical applications. Topics include gravity and magnetic field mapping, integration of quantum and classical observations, gravity- and magnetic-aided navigation, and multi-sensor fusion in GNSS-denied environments. Laboratory developments, numerical simulations, and field demonstrations across terrestrial, airborne, marine, and Arctic environments are welcome. The session aims to connect the quantum sensing, geodesy, and geophysics communities to address scientific and practical challenges in resilient PNT.