The university crest is a stylized representation of a new life and a Phoenix leaf. Some minor adjustments were made to a design by one of the students of the Faculty of Engineering which was chosen in a university-wide design contest, and it was finalized in 1956. The phoenix is a sacred bird in Egyptian mythology that, after living for 500 years, set itself on fire within its nest and rose renewed from the ashes. The immortal bird is a symbol of Hiroshima University, which was reborn out of the ashes of Hiroshima City after it was laid to ruin by the atomic bomb.

The university song was chosen in 1957. The lyrics are based on the submission of a student of the Faculty of Letters which was chosen in a university-wide contest. The music was composed by the Music Department at the Fukuyama Campus of the Faculty of Education. The lyrics are simple and elegant, with the first verse beginning with the words "there is light," the second with "there is a passing/flowing (of time/tradition)" and the third with "there is green (plant life)." The last words of each verse are "Our hope is to seek out truth," "We will be an organization that strives for the good of the world," and "Our wish is to pursue beauty," respectively, and express the unwavering desire to pursue truth, goodness, and beauty.

The university flag is green, representing rebirth from the ruins left by the atomic bomb, and has the school logo in the center. It was adopted in 1960.