A chamber pot is a portable toilet, meant for nocturnal use in the bedroom. It was common in many cultures before the advent of indoor plumbing and flushing toilets.

"Chamber" is an older term for bedroom. The chamber pot is also known as a Jordan, a jerry, a guzunder, a po (possibly from French: pot de chambre), a potty pot, a potty, a thunder pot, or a thunder mug. It was also known as a chamber utensil or bedroom ware.

Chamber pots were used in ancient Greece at least since the 6th century BC and were known under different names: ἀμίς (amis), οὐράνη (ouranē) and οὐρητρίς (ourētris, from οὖρον - ouron, "urine"), σκωραμίς / (skōramis), χερνίβιον (chernibion).

The introduction of indoor flush toilets started to displace chamber pots in the 19th century, but they remained common until the mid-20th century. The alternative to using the chamber pot was a trip to the outhouse.

In China, the chamber pot (便壶 (biàn hú) was common. A wealthy salt merchant in the city of Yangzhou became the symbol of conspicuous excess when he commissioned a chamber pot made of gold which was so tall that he had to climb a ladder to use it.

Chamber pots continue in use today^[update] in areas lacking indoor plumbing.

In the Philippines, chamber pots are used as urinals and are known as arinola in most Philippine languages, such as Cebuano and Tagalog.

In Korea, chamber pots are referred to as yogang (요강). They were used by people who did not have indoor plumbing to avoid the cold elements during the winter months.