A medical fluid coupling for connecting a fluid line to a connection section of a blood treatment apparatus or for connecting to a connecting adapter comprises at least one main body. The main body includes a first latching element with a first section. The first section is designed to be elastically bendable and/or elastically tiltable. The main body may optionally include a second latching element with a second section. At least one of the first latching element and the second latching element comprises a recess for receiving a protrusion of the connection section and/or a protrusion to reach into a recess of the blood treatment apparatus or of the connecting adapter.