An incinerating toilet is a toilet that reduces human excreta and urine to a sterile ash and vapor by incineration. It is a self-contained waterless system that is powered by electricity, or fueled by natural or propane gas.

Exhaust gases must be properly vented and residual ash must be removed every other incineration cycle. The toilet can be used 40-60 times between incineration cycles, which take about 4.5 hours.