A sheet conveyance apparatus includes an apparatus body, a sheet stacking portion including an engagement portion, provided to be insertable to/removable from the apparatus body and capable of having sheets stacked thereon, and a conveyance guide portion provided to be insertable to/removable from the apparatus body and constituting a sheet conveyance path through which a sheet passes in a state where the conveyance guide portion is mounted to a mounted position in the apparatus body. The conveyance guide portion has an engaged portion that is pressed by the engagement portion accompanying an operation where the sheet stacking portion is inserted to the apparatus body, and moves the conveyance guide portion to the mounted position.