瓦通纸（Corrugated Fiberboard）又称瓦楞纸、纸皮，是纸质包装箱常见的用料，它比木箱质轻，又有硬度，大小容易剪裁，保护被包装的其他产品，不被损害。而且瓦通纸可在外部印刷不同色彩图案及文本或写上文本符号，成本也相对便宜。一般中小型瓦通纸盒（无任何印刷、泥黄色）能在生活用品店购得。

不过，瓦通纸忌水浸、潮湿、发霉、入水、手勾等。

瓦通纸有时也用作手工艺材料，专用作手工艺的瓦通纸有多种颜色选择。亦有人以瓦通纸制造纸质家私。

Corrugated fiberboard is a material consisting of a fluted corrugated sheet and one or two flat linerboards. It is made on "flute lamination machines" or "corrugators" and is used in the manufacture of shipping containers and corrugated boxes.

The corrugated medium and linerboard board both are made of kraft containerboard, a paperboard material usually over 0.01 inches (0.25 mm) thick. Corrugated fiberboard and paperboard are sometimes called corrugated cardboard, although cardboard might be any heavy paper-pulp based board.