Abstract: A cowl cross bar for a vehicle comprising a main cross bar disposed in front of a driver's seat in a transverse direction of the vehicle, a sub-cross bar disposed in front of a passenger seat in the transverse direction of the vehicle, and a center supporter configured to couple the main cross bar and the sub-cross bar to each other such that diametric centers thereof are disposed eccentrically relative to each other, the center supporter may include a main center support bracket provided with a connector to which a longitudinal end of the sub-cross bar is fixed, and a sub-center support bracket fixed to the main center support bracket, and having an insert hole through which a longitudinal end of the main cross bar is fixed to the sub-center support bracket.