A flush toilet includes: a toilet body; a function unit arranged in a rear part of the toilet body; a panel member covering a side surface of the function unit and including a protruding part protruding toward the toilet body; and a holding part causing the toilet body and the panel member to hold to each other by magnetic force. The toilet body includes: a reception part arranged under the protruding part and receiving the protruding part in a state where the panel member is attached to the toilet body; and a protrusion part extending upward from the reception part. When the panel member is attached to the toilet body, the protrusion part is in a position where at least a part of the protrusion part is overlapped with the protruding part in a rear view when the toilet body is viewed from behind.