The reverse input cutoff clutch comprises a pressed member having a pressed surface, an input member arranged coaxially with the pressed surface and having an input-side engaging portion arranged radially inside the pressed surface, an output member arranged coaxially with the pressed surface and having an output-side engaging portion arranged more radially inside than the input-side engaging portion, and an engaging element arranged radially inside the pressed surface and having a pressing surface facing the pressed surface, an input-side engaged portion that engages with the input-side engaging portions, and an output-side engaged portion that engages with the output-side engaging portion. The output-side engaged portion is configured by a recessed portion, and the interior surface of the recessed portion has a pair of guided surfaces. The output-side engaging portion has a pair of guide surfaces facing the pair of guided surfaces.