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Tidal power is one of the renewable energy sources. The tides produced in the water is used to drive the blade rotation of a tidal turbine for energy conversion. However, the blade rotation produces noises over 10–150 kHz that affect underwater mammals. In this wok, numerical simulations are conducted to predict the hydro-acoustics signature of different NACA foils, which could be used for tidal turbine blades. Finite volume and Ffowcs-WilliamsHawking’s method are used to predict the fluid dynamics and acoustics signatures. We first study the effect of thickness to chord ratio (Tb/cb = 0.1, 0.13 and 0.19) on the noise generation from three different NACA foils (i.e., NACA0012, 0018, and 2410). Hydrodynamic data of these three foils are used for validation of its hydro-acoustics signature. Hydro-acoustics data are acquitted over the propagation distance from 50 m to 2.6 km at different angular positions and at various angles of attack (AOA) (AOA = 0°, 9°, and 15°). To shed lights on the sound generation mechanism, the NACA 2410 foil with vortex generator-produced perturbations is chosen as a case study. Comparison is then made between the prediction and the acoustic data of an actual foil.