The invention provides a signal output circuit, an electronic device and a moving object which are capable of improving a duty ratio with a simple configuration. The signal output circuit (1) includes a signal correction circuit (10), having a clock signal input thereto, which corrects the clock signal to output the corrected signal, and a waveform shaping circuit that shapes a signal from the signal correction circuit (10). In the clock signal, pulses having a pulse width [tau] capable of being represented by a length of a time are periodically arranged with a period T, and the pulse width [tau] and the period T satisfy a relation that [tau]/T is not equal to 0.5. The signal correction circuit (10) attenuates a signal having a second frequency based on a time width of at least one of the pulse width [tau] and a pulse width T-[tau], rather than a signal having a first frequency based on the period T.