Clava

Clava can refer to:
 * Mu Boötis, a triple star system in the constellation Boötes
 * Clava cairn, a type of Bronze Age circular chamber tomb cairn
 * Gracile nucleus, an area of the brain that participate in the sensation of fine touch and proprioception of the lower body
 * The club-like segments at the end of some insect antennae
 * Clava (cnidarian), a genus of marine hydroid