枕头战是一种利用枕头来进行打闹的游戏，较常见于幼小的孩童。因为枕头是软的缘故，所以极少发生受伤的情形，但枕头重击仍能将年轻人打到失去平衡，尤其是当站在不稳的表面，例如柔软的床上。

在早期枕头战常常把枕头扯坏，造成内填的羽毛等填充物四散飘荡，现代枕头造得比较强韧，因此这情形较少发生。

为了避免在枕头战中，身上的锐利物品伤害到其他人，打枕头战时必须先取下身上的戒指、耳环、手表、项链，并且不能攻击正在拿相机摄影的人。

在2005年荷兰格罗宁根的学生们在金氏世界纪录的官方见证下创造2997人参与的枕头战世界纪录。

A pillow fight is a common game mostly played by young children (but also by teens and adults) in which they engage in mock physical conflict, using pillows as weapons.

Many times pillow fights occur during children's sleepovers. Since pillows are usually soft, injuries rarely occur. The heft of a pillow can still knock a young person off balance, especially on a soft surface such as a bed, which is a common venue. A useful technique in a pillow fight is to bundle the nibs. In earlier eras, pillows would often break, shedding feathers throughout a room. Modern pillows tend to be stronger and are often filled with a solid block of artificial filling, so breakage occurs far less frequently.