Extended pain relief via high frequency spinal cord modulation, and associated systems and methods. A method for treating a patient in accordance with a particular embodiment includes selecting a neural modulation site to include at least one of a dorsal root entry zone and dorsal horn of the patient's spinal cord, and selecting parameters of a neural modulation signal to reduce patient pain for a period of time after ceasing delivery of the signals, the period of time being at least one tenth of one second.