圆形监狱（又称环形监狱、全景监狱；英语：Panopticon）是一种监狱的设计方式，设计者是英国哲学家杰里米·边沁，于1785年提出。

一种设计为如右图所示：四周的环形建筑分隔成一个个囚室，囚室的一端面向外界，用于采光，另一端面向中间一座用于监视的高塔，这样这座高塔中的监视人员可以时刻监视到任何一间囚室，而囚室中的犯人因为逆光效果，无法看到监视人员，会疑心自己时刻受到监视，惶惶不可终日。这样可以减少监视人员的数量。

监狱的犯人会被要求进行一些体力劳动，例如走在一个驱动织布机或水车的大轮子上，使得监狱有一定的收入。

The Panopticon is a type of institutional building designed by the English philosopher and social theorist Jeremy Bentham in the late 18th century. The concept of the design is to allow all (pan-) inmates of an institution to be observed (-opticon) by a single watchman without the inmates being able to tell whether or not they are being watched. Although it is physically impossible for the single watchman to observe all cells at once, the fact that the inmates cannot know when they are being watched means that all inmates must act as though they are watched at all times, effectively controlling their own behaviour constantly. The name is also a reference to Panoptes from Greek mythology; he was a giant with a hundred eyes and thus was known to be a very effective watchman.