Non-destructive testing (NDT) and structural health monitoring (SHM) are critical for ensuring quality in both the manufacturing and operational phases of various structures. This mini-symposium aims to present and discuss recent advancements in various NDT and SHM technologies (Visual, ultrasonic, thermographic, eddy current, acoustic emission, magnetic, etc.). It includes but not limited to: i) Computational modelling methods; ii) Novel methods, approaches, and software integrated with advanced sensor technologies; iii) Signal processing algorithms, feature extraction, and damage indicators; and iv) AI-based methods for enhancing the effectiveness and efficacy of defect detection in NDT and SHM.