An electrical stimulation lead includes at least one anchoring unit and each anchoring unit includes a lead attachment element. Some anchoring units include one or more anchoring fins attached to the lead attachment element and extending away from the lead attachment element when in a deployed position for contact with patient tissue to anchor the lead within the patient tissue. Each anchoring fin also has a retracted position in which the anchoring fin folds down and lies next to the lead attachment element. Other anchoring units include one or more anchoring tabs defined by the lead attachment element. Each anchoring tab is partially separated from a remainder of the lead attachment element by at least one cutout and extends away from the remainder of the lead attachment element when in a deployed position for contact with patient tissue to anchor the lead within the patient tissue.