A contact terminal includes a tubular body extending in an axial direction parallel to a central axis of the contact terminal and a bar-shaped conductor having conductivity. The conductor includes a protrusion protruding toward one side in the axial direction from the tubular body, and an insertion portion disposed inside from an outer periphery of the tubular body. The tubular body includes an end side notch provided along the axial direction on a peripheral surface of the one end portion in the axial direction of the tubular body, and a first circumferential notch connected to another side in the axial direction of the end side notch and provided along a circumferential direction away from the end side notch with respect to a first end portion in a circumferential direction of the end side notch.