Thunder Materia may refer to:
- The gun customization materia from Dirge of Cerberus -Final Fantasy VII-.
- An enemy from Crisis Core -Final Fantasy VII-.
- A recurring Magic Materia.
Thunder is the sound caused by lightning. Depending on the distance and nature of the lightning, thunder can range from a sharp, loud crack to a long, low rumble (brontide).
Materia means "matter" or "substance" in Latin and Spanish. It also means "subject" in Italian and Spanish, and is the ascendant of Portuguese "Matéria".