Neuromodulation catheters with nerve monitoring features for transmitting digital neural signals and associated systems and methods are disclosed herein. A neuromodulation catheter configured in accordance with some embodiments of the present technology can include, for example, a handle and an elongated shaft attached to the handle. The shaft can have a proximal portion and a distal portion configured to be moved within a lumen of a blood vessel of a human patient. The neuromodulation catheter can further include an array of contacts at the distal portion of the shaft and a digitizer at the handle or the shaft. The contacts can be configured to detect analog neural signals from within the blood vessel. The digitizer can be configured to receive the analog neural signals from the contacts, digitize the analog neural signals into digital neural signals, and transmit the digital neural signals to a read/write module external to the patient.