<p>Offshore wind turbines (OWTs) offer an effective means of harnessing renewable energy due to their exposure to strong wind resources. However, these structures are highly susceptible to local scour. Although physical experiments can provide valuable insights into scour mechanisms, the development of three-dimensional numerical models offers a cost-effective and flexible alternative for investigating this phenomenon. This study presents a state-of-the-art review of scour numerical modelling around offshore wind turbine foundations, highlighting critical influencing factors, methodologies for characterizing hydrodynamic forces, and 3D numerical modelling methods. A systematic analysis of existing literature, employing various methods for characterization of fluid and solid dynamics, turbulence models, and sediment transport and morphology models, is conducted to address the current lack of review papers dedicated to scour modelling around OWTs. This review also examines the application of each modelling approach, highlighting their strengths and limitations in predicting key scour characteristics by a comparative evaluation of both experimental and numerical data. The findings demonstrate that numerical models can reproduce the principal scour features around OWT foundations with acceptable accuracy. However, the reliability of predictions depends critically on the careful selection of modelling approaches and input parameters. The insights from this review could assist engineers in improving scour prediction capabilities and contribute to the advancement of foundation design practices in the offshore wind industry.</p>