A novel maize variety designated PHRAR and seed, plants and plant parts thereof. Methods for producing a maize plant that comprise crossing maize variety PHRAR with another maize plant. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into PHRAR through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby. Hybrid maize seed, plant or plant part produced by crossing the variety PHRAR or a trait conversion of PHRAR with another maize variety. Inbred maize varieties derived from maize variety PHRAR, methods for producing other inbred maize varieties derived from maize variety PHRAR and the inbred maize varieties and their parts derived by the use of those methods.