An article alignment device aligns articles having first end portions and second end portions that have a shape different from the shape of the first end portions. The article alignment device includes a first conveyance device, a second conveyance device, and a control device. The first conveyance device has conveyance units that carry and convey the articles. The first conveyance device conveys the articles in a first orientation. In the first orientation the first end portions are positioned on a downstream side with respect to a first conveyance direction of the articles. The second conveyance device is placed downstream of the first conveyance device. The control device controls the first and second conveyance devices such that the orientation of first articles conveyed by the second conveyance device are changed to a second orientation where the second end portions are positioned on the downstream side.