A coaxial connector 1, which is attached to a circuit board 2 having a land 151, includes a coaxial terminal 51 which has a coaxial structure including a center terminal 52 and a cylindrical outer terminal 61 surrounding the center terminal 52; a housing 11 which accommodates the coaxial terminal 51; and a cylindrical contact 81 which is movable in an axial direction of the outer terminal 61 and which is brought into contact with the land 151; wherein an oblique slit 82 or an oblique groove is formed on the cylindrical contact 81 obliquely with respect to the axial direction; and the coaxial terminal 51 or the housing 11 is provided with a projection (95, etc.) which is engaged with the oblique slit 82 or groove.