A sheet conveying apparatus includes a sheet conveyance section, a roller pair unit, first and second guides, and a movable guide including an upstream portion extending upstream in the sheet conveying direction with respect to the nip portion and a downstream portion extending downstream in the sheet conveying direction with respect to the nip portion. The roller pair unit nips the sheet, warps the sheet in a case where a leading end of the sheet conveyed by the sheet conveyance section comes into contact with the roller pair unit, and conveys the sheet. The first guide opposes a first side of the sheet and guides the sheet. The second guide opposes a second side of the sheet. The movable guide opposes the first side of the sheet and moves in such a manner that the downstream portion of the movable guide moves closer to or away from the second guide.