Tyndall is a relatively small lunar impact crater on the far side of the Moon, behind the southeastern limb. It is located very near the western outer rim of the larger Pizzetti crater, and the two are separated only by a few kilometers of lunar terrain. To the southwest of Tyndall is Bjerknes crater, and to the south lies Clark crater.

British physicist (born in Ireland) remembered for his experiments on the transparency of gases and the absorption of radiant heat by gases and the transmission of sound through the atmosphere; he was the first person to explain why the daylight sky is blue (1820-1893)