thumb|right|240px|Mosaic of oblique [[Lunar Orbiter 5 images, facing west]]
Joule is a lunar impact crater that lies on the far side of the Moon. It is located to the north-northeast of the walled plain Mach. To the northwest of Joule is the crater Blazhko.
This is a worn and eroded crater formation. A pair of smaller craters lies along the northeastern rim, and a crater is intruding into the northwest rim. To the south is an outward projection that has the appearance of a crater partly overlain by Joule. The infrared spectrum of pure crystalline plagioclase has been identified on the south wall.
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