An object recognition device for a vehicle includes a size determining means, an existence condition determining means, and an adverse condition determining means. The size determining means determines that the recognized objects are large when a size of the objects is larger than a given determination value. The existence condition determining means determines whether at least a given number of the objects are determined to be large by the size determining means. The adverse condition determining means identifies an adverse condition related to recognizing the objects when at least the given number of the objects are determined to be large by the existence condition determining means.

 
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