A multi-channel delay locked loop includes a global delay locked loop and a plurality of local delay locked loops. The global delay locked loop is configured to lock an input clock signal and output a global delay control signal corresponding to a delay amount of the input clock signal during a locking operation. Each of the plurality of local delay locked loops is configured to output a channel clock signal by locking the input clock signal, and initialize the delay amount of the input clock signal according to the global delay control signal.