Pinion housing with contaminant deflector

An axle assembly includes a carrier housing having a deflector, a differential assembly, and an input shaft. The carrier housing has a main body and a pinion nose extending from the main body. The pinion shaft and the differential assembly are each rotatably supported by the carrier housing in driving engagement with one another. The pinion shaft extends through an aperture in the pinion nose. The deflector extends across at least a portion of an outer surface of the pinion nose to redirect contaminants from entering the carrier housing.