并四苯（Tetracene）是一种多环芳香烃，化学式 C₁₈H₁₂。 外观为浅橙色粉末。并四苯与萘、蒽、并五苯一样属于并苯类芳烃。

并四苯可从煤焦油经分馏提纯得到。由邻苯二甲酸酐与相应的萘衍生物的反应，可以合成并四苯。

Tetracene, also called naphthacene, is a polycyclic aromatic hydrocarbon. It has the appearance of a pale orange powder. Tetracene is the four-ringed member of the series of acenes, the previous one being anthracene (tricene) and the next one being pentacene.