p‐Xylene is a major commodity chemical used for the production of polyethylene terephthalate, a polymer with applications in polyester fibers, films, and bottles. The Diels–Alder cycloaddition of 2,5‐dimethylfuran and ethylene and the subsequent dehydration of the cycloadduct intermediate is an attractive reaction pathway to produce renewable p‐xylene from biomass feedstocks. However, the highest yields reported previously do not exceed 75 %. We report that P‐containing zeolite Beta is an active, stable, and selective catalyst for this reaction with an unprecedented p‐xylene yield of 97 %. It can catalyze the dehydration reaction selectively from the furan‐ethylene cycloadduct to p‐xylene without the production of alkylated and oligomerized products. This behavior is distinct from that of Al‐containing zeolites and other solid phosphoric acid catalysts and establishes a commercially attractive process for renewable p‐xylene production. Bright zeolites: A P‐containing zeolite with a Beta topology (P‐BEA) and hierarchical self‐pillared pentasil exhibit an unprecedented p‐xylene yield of 97 % in the Diels–Alder cycloaddition and dehydration of 2,5‐dimethylfuran with ethylene, which establishes a commercially attractive process for renewable p‐xylene production.