Retinaculum may refer to:

In vertebrate anatomy:

Retinaculum, a band around tendons that holds them in place Extensor retinaculum of the hand Flexor retinaculum of the hand Flexor retinaculum of foot Inferior extensor retinaculum of foot Lateral retinaculum Medial patellar retinaculum Peroneal retinacula Retinaculum cutis mammae, Latin name for connective breast tissue Superior extensor retinaculum of foot

In invertebrate anatomy: the retinaculum, in wing the Retinaculum (springtail), in springtail abdomen Buffetia retinaculum, a species of air-breathing land snail