portable toilet washroom or mobile toilet and bathroom is a toilet that may easily be moved around. They may be toilets that can be brought on site, such as a festival, concert or building site, to quickly provide sanitation services. A major characteristic is that most types do not require any pre-existing services to be provided on-site for manufacturing. These type of fiberglass plastic portable toilet are ready to use any time just need connections.

A portable toilet is not connected to a hole in the ground (like a pit latrine), nor to a septic tank, nor is it plumbed into a municipal system leading to a sewage treatment plant; it can, by definition, be picked up and moved.