To provide a skew adjustment circuit, a signal generator and a skew adjustment method for automatically adjusting a phase difference between a plurality of signals.

A phase comparator 15 outputs a phase difference between an output signal (a) of a signal generating circuit 11 and an output signal (b) of a signal generating circuit 12 as a signal (c). An integrating circuit 16 integrates the signal (c) to output a signal (d) proportional to the phase difference into a delay circuit 17. The circuit 17 gives a delay time to the signal (b) on the basis of the signal (d).