What is the distance from the peak of one wave to the peak of the next wave called?

wavelength| The distance between one peak or crest of a wave of light, heat, or other energy and the next corresponding peak or crest. amplitude| The height of a crest (or the depth of a trough) of a wave.

Wavelength refers to the length of a wave from one peak to the next. The amplitude or height of a wave is measured from the peak to the trough.