A hybrid boat hull. In a first embodiment, the hybrid boat hull comprises a first and second outer elongated hulls each curved inwards to respectively define first and second keel fins which provide buoyancy and act as inclined hydrofoils when the hybrid hull is run at high speed. In a second embodiment, the hybrid boat hull further comprises an elongated central hull, which serves to dampen the effect of slamming of waves on the underside of the hybrid boat hull.