To provide a medical connector from which an elastic valve body is unlikely to come off while preventing the connector from becoming upsized.SOLUTION: A medical connector 100 includes a cylindrical housing part 101 that has an insertion port 111 in which a male connector is inserted; and an elastic valve body 102 fixed to the housing part 101 in the way that it closes the insertion port 111. The elastic valve body 102 includes a main body 103 and a stopper member 104 formed by a material harder than the main body 103 and embedded in the main body 103. The main body 103 has a center part 121 and an outer edge part 123 encircling the center part 121. The outer edge part 123 has an embedding part 126 in which the stopper member 104 is embedded and a narrow part 127 which is provided nearer on the center part 121 side than the embedding part 126 and is gripped by the housing part 101. The stopper member 104 is thicker than the narrow part 127.SELECTED DRAWING: Figure 3【課題】コネクタが大型化しないようにしつつ弾性弁体が脱落しにくい医療用コネクタを実現できるようにする。【解決手段】医療用コネクタ100は、オスコネクタが挿入される挿入口111を有する筒状のハウジング部101と、挿入口111を閉塞するようにハウジング部101に固定された弾性弁体102とを備えている。弾性弁体102は、本体103と、本体103よりも硬質の材料により形成され、本体103に埋め込まれたストッパ部材104とを含む。本体103は、中央部121と、中央部121を囲む外縁部123とを有する。外縁部123は、ストッパ部材104が埋め込まれた埋め込み部126と、埋め込み部126よりも中央部121側に設けられ、ハウジング部101に挟み込まれた狭小部127とを有し、ストッパ部材104の厚さは、狭小部127の厚さよりも厚い。【選択図】図3