An image reading apparatus includes a reader unit configured to read an image of a conveyed document at a reading position, a transparent member arranged at the reading position and including a conductive layer, which is earthed, on a surface of the transparent member, a conveyance unit configured to convey the document to the reading position, and a guide member that is earthed, provided along the surface of the transparent member, and positioned so as to intersect with a conveyance direction of the document conveyed by the conveyance unit.