Provided are a urine collection receptacle suitable for treating urine discharged to the exterior of a main body part of a toilet, and a toilet including the urine collection receptacle. A urine collection receptacle has a box shape, and is to be installed in a toilet. The toilet includes a box-shaped main body part into which urine is excreted. The main body part has a bottom surface part and a side surface part. The side surface part is provided with a first opening from which the urine is discharged. A side surface part of the urine collection receptacle is provided with a second opening. The second opening allows the urine discharged from the first opening to flow into the urine collection receptacle.