There are provided an endoscope system capable of suppressing an increase in the size of a first connector of an endoscope and of performing non-contact electric power supply and non-contact signal transmission, an endoscope, and an endoscope connector. A power receiving unit and a power supply unit are disposed opposite to each other along an insertion direction of first and second connectors, and an image signal transmission unit and an image signal receiving unit are disposed opposite to each other along the insertion direction of the first and second connectors. A first circuit board is disposed on the opposite side to the power supply unit with respect to the power receiving unit so as to partially overlap the power receiving unit in the insertion direction. The power receiving unit and the image signal transmission unit are disposed so as not to overlap each other in the insertion direction.
