An interchangeable pickup support is for a stringed musical instrument. The support is of the type that includes at least a base body provided with an attachment to a stringed musical instrument and a support for supporting and attaching the pickup to the base body. The attachment includes at least a fastener which is movable by an actuator which is rigidly connected to the fastener, the ends of which are configured to project in part through respective holes arranged on the outer surface of the base body and attached to the stringed musical instrument. The base body also includes at least a retainer for the fastener in the attachment to the stringed musical instrument.