Flush toilet

A flush toilet, comprising:

• a toilet body including a toilet bowl part, a rim conduit formed along a circumferential direction on an upper inner peripheral part of the toilet bowl part, and a rim part provided extending outward from an upper edge part of the toilet bowl part;
• and a casing mounted on an upper surface part of the toilet body, rearward of the toilet bowl part;
• wherein the casing houses internal devices;
• wherein the upper surface part includes a cut-out part formed such as to be recessed downward from the other part of the upper surface part;
• and the casing is disposed on the cut-out part such as to be partially positioned downward with respect to an upper surface of the rim part, and such as to be partially stuck out into the toilet bowl part from upon the cut-out part, and on a bottom surface of its stuck-out part, the casing is provided with a conduit forming surface serving as an upper surface of the rim conduit.