[Problem to be Solved] An objective of the present invention is to provide a balloon catheter in which a function of transmitting force from a core wire to both an outer tube and an inner tube can be maintained even in a case where the force is generated when the proximal end portion of the balloon catheter is pushed and/or pulled, and the core wire is allowed to move appropriately to maintain the flexibility of the balloon catheter even when the balloon catheter bends. [Solution] A balloon catheter 10 comprises a balloon 30, an outer tube 20 connected to a proximal end of the balloon 30, an inner tube 40 disposed inside the outer tube 20 and having a distal end attached to a distal end of the balloon 30, a protruded-depressed portion 45 formed on an outer periphery of the inner tube 40, a core wire 60 disposed between the outer tube 20 and the inner tube 40, wherein the core wire 60 has a bulged portion 80 sandwiched between the outer tube 20 and a depressed portion 45b of the protruded-depressed portion 45.
